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The usage share of web browsers is the percentage of visitors to a group of websites that use a particular web browser. For example, when it is said that Internet Explorer has 58% usage share, it means that some version of Internet Explorer is used by 58% of visitors that visit a given set of sites.

Accuracy

Measuring browser usage in the number of requests (page hits) made by each user agent can be misleading.

Overestimation

Not all requests are generated by a user, as a user agent can make requests at regular time intervals without user input. In this case the usage of that user agent would then be overestimated. Some examples:

  • A web browser that refreshes the webpage at a regular time interval.
  • A feed reader that requests the RSS or Atom feed at a regular time interval.
  • Extra files like CSS hacks and JavaScript hacks are often sent to Internet Explorer.
  • Gecko-based browsers (such as Firefox) can prefetch linked web pages, potentially increasing hits. Link prefetching in Gecko-based browsers is used on pages with enhanced markup, including Google search results.
  • A user who revisits a site shortly after changing or upgrading browsers may be double-counted under some methodologies; overall numbers at the time of a new version's release may be skewed.
  • Certain anti-virus products fake their user-agent to appear to be popular browsers. This is done to trick attack sites that might display clean content to the scanner, but not to the browser. The Register reported in June 2008 that traffic from AVG Linkscanner, using an IE6 user-agent, outstripped human link clicks by nearly 10 to 1.
  • Many types of software, such as Web validators or crawlers, fetch web pages, and send fictitious user-agent strings to appear more like normal traffic.
  • Browsers such as Safari maintain a dashboard of frequently visited sites. This generates hits to those sites on browser start or at times on launch of a new tab, in order to update the thumbnail images.


Underestimation

It is also possible to underestimate the usage share by using the number of requests, for example:

  • A graphical browser typically results in more hits than a text browser, as it downloads files referred to by the HTML document (e.g., images, CSS, and JavaScript).
  • Many browsers and download managers spoof a different user agent string to the web server to prevent erroneous or malicious browser sniffing which could result in receiving broken or incompatible code, or being completely blocked, and thus increasing the statistics for other browsers (as an example, prior to version 9, the Opera web browser had "Identify as Internet Explorer" as the default user setting). Sometimes you can detect these spoofing browsers based on other things but some people do not do it. (An example is IEMobile which ships in Windows Mobile 6.1.4 and 6.5 with the default user agent string as IE6 WinXP but if you look at the other HTTP Headers you can actually tell it is IEMobile)
  • Text-based and audio-based browsers do not download any web bugs at all.
  • Gecko-based browsers since Firefox 1.5 and Opera use fast Document Object Model (DOM) caching. JavaScript is only executed on pageload from net or disk cache, but not if it is loaded from DOM cache. This can have an impact on JavaScript based tracking of browser statistics.
  • Some browser extensions and security programs (such as the popular Firefox extension NoScript) block javascript, flash, applets and some forms of HTML (HTML blocked through ClearClick) for non-whitelisted sites. This may also affect JavaScript based tracking of browser statistics.
  • Many browsers accessing a site via one proxy are apt to be counted as only one access if the proxy caches the result; it is usual for browsers on mobile phones in particular to access the web via proxies (many of which violate HTTP's specifications for proxies; even if a web bug is designed to work despite proxying, the proxies run by mobile operators may well mislead it).
  • While most browsers generate additional page hits by refreshing web pages when user navigates back through page history, some browsers (such as Opera) reuse cached content without resending requests to server.
  • Generally, the more faithfully a browser implements HTTP's cache specifications, the more it shall be under-reported relative to browsers which implement those specifications poorly.
  • Many plug-ins can change (generally append strings to) the User Agent. This can lead to Browser Detection flaws.
  • User Agents are not guaranteed to be a certain format. As an example of the inconsistency almost every User Agent pretends to be Mozilla 5.0.
  • Some ISPs mainly mobile phone ISPs have begun stripping the user agent strings


Summary Table

Source Latest report Internet Explorer Firefox Safari Chrome Opera
The Counter October 2009 70.77% 18.33% 4.96% (N/A) 0.87%
OneStat March 2009 79.79% 15.59% 2.65% 0.86% 0.54%
Net Applications November 2009 63.61% 24.74% 4.36% 3.92% 2.31%
ADTECH (Europe) March 2009 67.70% 25.30% 2.60% 1.00% 1.40%
W3Counter October 2009 51.22% 31.89% 4.37% 3.90% 1.50%
AT Internet September 2009 62.00% 28.40% 4.30% 2.80% 2.20%
Stat Counter November 2009 56.57% 32.21% 3.67% 4.66% 2.02%
Mean October 2009 64.87% 25.06% 3.82% 2.72% 1.51%
Median October 2009 64.64% 25.30% 4.30% 3.19% 1.50%


Note that AT Internet Institute value applies only to Europe. Therefore it is not included in the monthly summary calculations.

Historical Usage Share

TheCounter.com (2000 to present)

Usage share of web browsers history from 2000 to 2009 according to TheCounter.com.
TheCounter.com identifies sixteen versions of six browsers (Internet Explorer, Firefox, Safari, Opera, Netscape, and Konqueror). Other browsers are categorised as either ‘Netscape compatible’ (including Google Chrome, which may also be categorized as 'Safari' due to its 'Webkit' subtag) or ‘unknown’. Internet Explorer 8 is identified as Internet Explorer 7. Monthly data includes all hits from 2008-02-01 until the end of the month concerned. More than the exact browser type, this data identifies the underlying web rendering engine used by various browsers, and the table below aggregates them in the same column.

Global usage share data from TheCounter.com (Global statistics)
Period

Internet

Explorer


Netscape /

Mozilla /

Firefox
Safari



Opera



Netscape

Navigator


Sources



2009 Q3 69.07 % 20.59 % 8.10 % 0.89 % 0.06 % Jul, Aug, Sep
2009 Q2 70.31 % 20.12 % 6.44 % 0.94 % 0.06 % Apr, May, Jun
2009 Q1 71.25 % 20.01 % 5.47 % 0.92 % 0.08 % Jan, Feb, Mar
2008 Q4 74.24 % 18.66 % 4.52 % 0.89 % 0.07 % Oct, Nov, Dec
2008 Q3 76.33 % 17.97 % 3.76 % 0.84 % 0.07 % Jul, Aug, Sep
2008 Q2 78.30 % 16.36 % 3.41 % 0.81 % 0.06 % Apr, May, Jun
2008 Q1 78.80 % 15.87 % 3.32 % 0.79 % 0.06 % Jan, Feb, Mar
2007 Q4 81.14 % 13.81 % 3.21 % 0.67 % 0.06 % Oct, Nov, Dec
2007 Q3 81.63 % 13.49 % 3.00 % 0.66 % 0.06 % Jul, Aug, Sep
2007 Q2 82.97 % 12.41 % 2.87 % 0.64 % 0.06 % Apr, May, Jun
2007 Q1 83.69 % 11.57 % 2.92 % 0.57 % 0.06 % Jan, Feb, Mar
2006 Q4 84.11 % 11.13 % 2.80 % 0.60 % 0.05 % Nov, Dec
2006 Q3 84.48 % 10.56 % 2.27 % 0.73 % 0.06 % Jul, Aug, Sep
2006 Q2 86.32 % 9.03 % 1.89 % 0.70 % 0.05 % Apr, May, Jun
2006 Q1 90.01 % 6.77 % 1.40 % 0.58 % 0.05 % Jan, Feb, Mar
2005 Q4 87.25 % 8.60 % 1.83 % 0.71 % 0.07 % Oct, Nov, Dec
2005 Q3 87.58 % 8.42 % 1.60 % 0.67 % 0.07 % Jul, Aug, Sep
2005 Q2 90.90 % 6.02 % 0.99 % 0.51 % 0.09 % Apr, May, Jun
2005 Q1 90.77 % 5.73 % 1.00 % 0.54 % 0.11 % Jan, Feb, Mar
2004 Q4 90.98 % 5.10 % 0.77 % 0.68 % 0.18 % Oct, Nov, Dec
2004 Q3 92.70 % 3.57 % 0.73 % 0.65 % 0.20 % Jul, Aug, Sep
2004 Q2 95.04 % 2.37 % 0.67 % 0.51 % 0.32 % Apr, May, Jun
2004 Q1 94.28 % 2.70 % 0.52 % 0.36 % Jan, Feb, Mar
2003 Q4 Oct, Nov, Dec
2003 Q3 Jul, Aug, Sep
2003 Q2 94.43 % 2.22 % 0.66 % 1.45 % Apr, May, Jun
2003 Q1 94.18 % 2.15 % 0.65 % 1.77 % Jan, Feb, Mar
2002 Q4 93.94 % 1.67 % 0.83 % 2.31 % Oct, Nov, Dec
2002 Q3 93.32 % 1.36 % 0.94 % 3.04 % Jul, Aug, Sep
2002 Q2 92.47 % 1.13 % 0.82 % 4.13 % Apr, May, Jun
2002 Q1 92.40 % 0.93 % 0.52 % 4.67 % Jan, Feb, Mar
2001 Q4 90.83 % 0.71 % 0.36 % 5.23 % Oct, Nov, Dec
2001 Q3 88.43 % 0.26 % 0.31 % 6.49 % Jul, Aug, Sep
2001 Q2 87.99 % 0.27 % 0.28 % 7.46 % Apr, May, Jun
2001 Q1 86.80 % 0.30 % 0.22 % 9.84 % Jan, Feb, Mar
2000 Q4 83.95 % 0.14 % 0.14 % 12.61 % Oct, Nov, Dec
2000 Q3 82.76 % 0.04 % 0.14 % 14.35 % Jul, Aug, Sep
2000 Q2 80.30 % 0.02 % 0.12 % 17.54 % Apr, May, Jun
2000 Q1 79.09 % 0.00 % 0.13 % 19.25 % Jan, Feb, Mar


OneStat.com (2002 to present)

Global usage share data from OneStat.com (Press releases)
Period

Internet

Explorer


Mozilla /

Firefox

Safari



Chrome



Opera



Netscape



Netscape

Navigator


2009-04-04 March 2009 79.59 % 15.59 % 2.65 % 0.86 % 0.54 % 0.31 %
2008-11-24 November 2008 81.36 % 14.67 % 2.42 % 0.54 % 0.55 % 0.32 %
2008-02-18 February 2008 83.27 % 13.76 % 2.18 % 0.55 % 0.14 %
2007-07-02 June 2007 84.66 % 12.72 % 1.79 % 0.61 % 0.11 %
2007-01-22 January 2007 85.81 % 11.69 % 1.64 % 0.58 % 0.13 %
2006-11-06 November 2006 85.24 % 12.15 % 1.61 % 0.69 % 0.11 %
2006-10-09 October 2006 85.85 % 11.49 % 1.61 % 0.69 % 0.12 %
2006-07-09 July 2006 83.05 % 12.93 % 1.84 % 1.00 % 0.16 %
2006-05-15 May 2006 85.17 % 11.79 % 2.02 % 0.79 % 0.15 %
2006-01-31 January 2006 85.82 % 11.23 % 1.88 % 0.77 % 0.16 %
2005-11-02 November 2005 85.45 % 11.51 % 1.75 % 0.77 % 0.26 %
2005-04-27 April 2005 86.63 % 8.69 % 1.26 % 1.03 % 1.08 %
2005-02-28 February 2005 87.28 % 8.45 % 1.21 % 1.09 % 1.11 %
2004-11-22 November 2004 88.90 % 7.35 % 0.91 % 1.33 %
2004-05-28 May 2004 93.9 % 2.1 % 0.71 % 1.02 %
2004-01-19 January 2004 94.8 % 1.8 % 0.48 % 0.8 %
2003-07-28 July 2003 95.4 % 1.6 % 0.25 % 0.6 % 1.9 % 0.6 %
2003-02-03 February 2003 95.2 % 1.2 % 0.11 % 0.7 % 1.9 % 1.0 %
2002-12-16 December 2002 95.0 % 1.1 % 0.8 % 1.9 % 1.1 %
2002-09-30 September 2002 94.9 % 0.8 % 0.9 % 1.8 % 1.2 %
2002-06-24 June 2002 95.3 % 0.4 % 0.7 % 1.5 % 1.9 %
2002-04-29 April 2002 96.6 % 0.5 % 0.7 % 2.1 %


USA usage share data from OneStat.com (Press releases)
Period

Internet

Explorer


Mozilla /

Firefox

Safari



Chrome



Opera



Netscape



2009-03 March 2009 72.69 % 20.40 % 4.53 % 1.05 % 0.38 % 0.49 %
2008-11 November 2008 75.54 % 18.74 % 3.95 % 0.62 % 0.39 % 0.50 %
2007-06 June 2007 75.69 % 19.65 % 3.77 % 0.61 % 0.17 %
2007-01 January 2007 78.13 % 16.11 % 3.68 % 0.73 % 0.18 %


Canadian usage share data from OneStat.com (Press releases)
Period

Internet

Explorer


Mozilla /

Firefox

Safari



Chrome



Opera



Netscape



2009-03 March 2009 65.55 % 23.09 % 7.36 % 1.32 % 0.75 % 0.56 %
2008-11 November 2008 69.67 % 20.38 % 7.56 % 0.92 % 0.76 % 0.56 %
2007-06 June 2007 75.76 % 16.47 % 5.72 % 0.69 % 0.13 %
2007-01 January 2007 79.00 % 14.13 % 4.70 % 0.71 % 0.14 %


UK usage share data from OneStat.com (Press releases)
Period

Internet

Explorer


Mozilla /

Firefox

Safari



Chrome



Opera



Netscape



2009-03 March 2009 80.91 % 15.16 % 1.94 % 0.85 % 0.60 % 0.36 %
2008-11 November 2008 83.77 % 11.45 % 1.76 % 0.43 % 0.60 % 0.34 %
2007-06 June 2007 86.00 % 11.22 % 1.61 % 0.53 % 0.10 %
2007-01 January 2007 86.72 % 10.86 % 1.78 % 0.49 % 0.10 %


Australian usage share data from OneStat.com (Press releases)
Period

Internet

Explorer


Mozilla /

Firefox

Safari



Chrome



Opera



Netscape



2007-06 June 2007 66.42 % 26.32 % 1.86 % 4.05 % 0.24 %
2007-01 January 2007 65.71 % 26.68 % 1.77 % 4.28 % 0.24 %


French usage share data from OneStat.com (Press releases)
Period

Internet

Explorer


Mozilla /

Firefox

Safari



Chrome



Opera



Netscape



2009-03 March 2009 71.57 % 23.48 % 2.90 % 0.86 % 0.54 % 0.46 %
2008-11 November 2008 71.50 % 23.45 % 3.23 % 0.59 % 0.56 % 0.51 %


Net Applications (2004 to present)

Usage share of web browsers history according to Net Applications
On 2009-08-01, Net Applications began weighting its raw data based on the number of internet users in the countries concerned, using data from the CIA ; the changes were applied retroactively to older data. The table below uses weighted data from 2007 Q4 onwards (the unweighted data, without applying these retroactive changes, are marked with an asterisk).

Global usage share data from: Net Applications
Period

Internet

Explorer


Firefox



Safari



Chrome



Opera



Netscape



Mozilla



2009 Q4 64.14 % 24.39 % 4.39 % 3.75 % 2.24 % 0.31 % 0.11 %
2009 Q3 66.80 % 23.06 % 4.13 % 2.86 % 2.07 % 0.50 % 0.09 %
2009 Q2 68.06 % 23.00 % 3.67 % 2.13 % 2.05 % 0.68 % 0.06 %
2009 Q1 69.13 % 22.67 % 3.58 % 1.56 % 2.18 % 0.51 % 0.06 %
2008 Q4 71.99 % 20.78 % 3.11 % 1.16 % 2.15 % 0.41 % 0.07 %
2008 Q3 74.93 % 19.07 % 2.73 % 0.37 % 2.06 % 0.43 % 0.07 %
2008 Q2 76.24 % 18.16 % 2.73 % 1.97 % 0.48 % 0.08 %
2008 Q1 77.83 % 16.86 % 2.65 % 1.84 % 0.41 % 0.13 %
2007 Q4 79.16 % 15.84 % 2.39 % 1.78 % 0.50 % 0.09 %
2007 Q3 * 78.85 % 14.69 % 4.80 % 0.51 % 0.76 % 0.11 %
2007 Q2 * 78.76 % 14.92 % 4.66 % 0.46 % 0.83 % 0.15 %
2007 Q1 * 79.38 % 14.35 % 4.70 % 0.50 % 0.77 % 0.19 %
2006 Q4 * 80.69 % 13.50 % 4.06 % 0.56 % 0.86 % 0.23 %
2006 Q3 * 82.88 % 11.89 % 3.30 % 0.62 % 0.88 % 0.26 %
2006 Q2 * 84.03 % 10.67 % 3.25 % 0.57 % 0.98 % 0.32 %
2006 Q1 * 85.01 % 9.77 % 3.10 % 0.53 % 1.09 % 0.36 %
2005 Q4 * 85.88 % 9.00 % 2.80 % 0.54 % 1.25 % 0.43 %
2005 Q3 * 86.74 % 7.97 % 2.24 % 0.55 % 1.92 % 0.48 %
2005 Q2 * 87.24 % 8.08 % 1.89 % 0.52 % 1.62 % 0.59 %
2005 Q1 * 89.02 % 6.17 % 1.70 % 0.49 % 1.89 % 0.67 %
2004 Q4 * 91.35 % 3.66 % 1.50 % 0.51 % 2.09 % 0.80 %


ADTECH (Europe, 2004 to present)

Europe usage share data from ADTECH (Press releases)
Period

Internet

Explorer


Firefox



Safari



Chrome



Opera



Mozilla



Netscape



2009-03 (2009-04-01) Q1 2009 67.7 % 25.3 % 2.6 % 1.0 % 1.4 % 1.1 %
2008-03 (2008-04-08) Q1 2008 76.2 % 18.1 % 1.7 % 1.0 % 2.6 %
2007-12 (2008-01-31) Q4 2007 76.0 % 18.0 % 1.6 % 1.0 % 2.9 %
2007-07 (2007-08-23) July 2007 77.5 % 15.5 % 1.6 % 0.9 % 3.9 %
2007-02 (2007-03-20) February 2007 77.34 % 14.34 % 1.63 % 0.85 % 5.11 %
2006-04 (2006-06-13) February–April 2006 83.36 % 12.38 % 1.67 % 0.77 % 0.82 % 0.38 %
2005-09 (2005-11-14) September 2005 83.31 % 12.41 % 1.40 % 0.90 % 1.06 % 0.61 %
2005-06 (2005-06-27) June 2005 85.10 % 10.11 % 1.34 % 1.21 % 1.05 % 0.60 %
2005-03 (2005-04-21) March 2005 86.73 % 8.96 % 1.12 % 1.14 % 0.71 %
2005-02 (2005-04-21) February 2005 87.57 % 7.85 % 1.05 % 1.26 % 0.76 %
2005-01 (2005-04-21) January 2005 87.13 % 7.43 % 1.70 % 1.33 % 0.85 %
2004-11-30 (2004-12-02) November 30, 2004 89.47 % 5.51 % 1.01 % 2.50 % 0.92 %
2004-11-16 (2004-12-02) November 16, 2004 90.56 % 4.56 % 1.07 % 2.38 % 0.89 %
2004-09 (2004-10-19) September 2004 92.63 % 2.91 % 1.00 % 2.10 % 0.82 %
2004-08 (2004-12-02) August 2004 93.08 % 2.15 % 0.89 % 2.18 % 0.95 %
2004-07 (2004-10-19) July 2004 93.08 % 1.64 % 0.99 % 2.62 % 0.97 %
2004-04 (2004-06-02) January–April 2004 94.72 % 0.73 % 2.50 % 1.49 %


W3 Counter (2007 to present)

Note: W3 Counter only lists the top 10 browsers by version. This is one of the reasons why Opera fluctuates between 0.7% and 1.2% in the table below, as some versions only make it into the top 10 occasionally. This site counts the last 25,000 page views from each site making relatively small sites contribute a lot more to the statistics than in an overall count.

As of October 31, 2009 uncategorised browsers are at 7.12%.

Global Web Stats from W3 Counter (Top 10 web browser versions)
Date

Internet

Explorer


Firefox



Safari



Chrome



Opera



Mozilla



2009-10-31 October 31, 2009 51.22 % 31.89 % 4.37 % 3.90 % 1.5 %
2009-09-30 September 30, 2009 51.73 % 31.69 % 4.07 % 3.69 % 0.84 %
2009-08-31 August 31, 2009 52.36 % 31.86 % 4.35 % 3.23 % 1.19 %
2009-07-31 July 31, 2009 52.93 % 31.40 % 3.11 % 3.11 % 1.18 % 1.10 %
2009-06-30 June 30, 2009 56.92 % 31.27 % 2.12 % (N/A) (N/A) 0.64 %
2009-05-31 May 31, 2009 57.40 % 31.04 % 2.19 % 0.57 % (N/A) (N/A)
2009-04-30 April 30, 2009 57.42 % 31.22 % 1.69 % 0.57 % 0.58 %
2009-03-31 March 31, 2009 57.63 % 31.07 % 1.76 % 0.59 % 0.62 %
2009-02-28 February 28, 2009 57.56 % 30.92 % 1.91 % 1.16 % 0.60 %
2009-01-31 January 31, 2009 57.90 % 30.70 % 2.44 % 0.67 % 0.56 %
2008-12-31 December 31, 2008 58.08 % 30.71 % 2.58 % 0.71 % 0.51 %
2008-11-30 November 30, 2008 58.57 % 30.40 % 2.70 % 1.23 % (N/A)
2008-10-31 October 31, 2008 59.05 % 30.13 % 2.77 % 1.36 % (N/A)
2008-09-30 September 30, 2008 57.03 % 32.07 % 2.51 % 1.56 % (N/A)
2008-08-31 August 31, 2008 58.46 % 31.40 % 1.80 % 1.55 % (N/A)
2008-07-31 July 31, 2008 60.65 % 29.68 % 1.90 % 1.08 % 0.58 %
2008-06-30 June 30, 2008 61.43 % 29.02 % 2.02 % 1.13 % 0.60 %
2008-05-31 May 31, 2008 61.56 % 28.86 % 2.16 % 1.15 % 0.62 %
2008-04-30 April 30, 2008 61.66 % 28.79 % 2.31 % 1.14 % 0.58 %
2008-03-31 March 31, 2008 61.66 % 28.39 % 2.50 % 1.11 % 0.61 %
2008-02-29 February 29, 2008 61.67 % 28.38 % 2.54 % 1.07 % 0.65 %
2008-01-31 January 31, 2008 61.79 % 28.39 % 2.42 % 1.02 % 0.52 %
2007-12-01 December 1, 2007 62.36 % 27.77 % 1.84 % 1.41 % 0.56 %
2007-11-10 November 10, 2007 62.55 % 27.56 % 1.95 % 1.39 % 0.59 %
2007-10-30 October 30, 2007 62.41 % 27.70 % 1.99 % 1.35 % 0.60 %
2007-09-20 September 20, 2007 66.22 % 25.45 % 1.76 % 1.22 % 0.61 %
2007-08-30 August 30, 2007 66.20 % 25.43 % 1.76 % 1.22 % 0.61 %
2007-07-30 July 30, 2007 66.41 % 25.11 % 1.75 % 1.16 % 0.65 %
2007-06-30 June 30, 2007 66.20 % 25.08 % 1.81 % 0.69 % 0.71 %
2007-05-30 May 30, 2007 66.69 % 24.55 % 1.85 % 1.22 % 0.73 %


AT Internet Institute (Europe, 2007 to present)

AT Internet Institute was formerly known as XiTi.

Europe usage share data from AT Internet Institute (Browsers barometer)
Date Internet Explorer Netscape Firefox Opera Safari Chrome Source
September 2009 62.0% N/A 28.4% 2.2% 4.3% 2.8% 2009-11
April 2009 63.6% 0.6% 28.4% 2.2% 3.4% 1.7% 2009-5
March 2009 64.6% 0.6% 27.8% 2.2% 3.3% 1.4%
February 2009 65.6% 0.5% 27.4% 2.1% 3.0% 1.3%
January 2009 58.1% 0.6% 32.5% 4.1% 3.0% 1.5% 2009-1
December 2008 58.5% 0.6% 32.3% 4.5% 2.7% 1.3%
November 2008 59.5% 0.6% 31.1% 5.1% 2.5% 1.1% 2008-12-22
October 2008 59.2% 0.6% 31.1% 5.4% 2.4% 1.1%
September 2008 60.2% 0.4% 31.2% 4.8% 2.4% 1.0% 2008-10-10
August 2008 59.4% 0.3% 33.0% 4.5% 2.6%
July 2008 60.4% 0.3% 32.2% 4.5% 2.4%
June 2008 60.5% 0.3% 31.4% 5.1% 2.5%
May 2008 61.7% 0.4% 30.7% 4.7% 2.4%
April 2008 64.5% 0.5% 28.9% 3.6% 2.4%
March 2008 65.0% 0.5% 28.8% 3.3% 2.3% 2008-04-30
February 2008 65.6% 0.5% 28.5% 3.2% 2.2%
January 2008 66.1% 0.5% 28.0% 3.2% 2.1%
December 2007 66.1% 0.5% 28.0% 3.3% 2.0%
November 2007 66.9% 0.5% 27.3% 3.2% 1.9%
October 2007 67.5% 0.4% 27.0% 3.1% 1.8%
September 2007 66.6% 0.3% 27.7% 3.4% 1.8% 2007-10-30
July 2-8, 2007 66.5% 0.3% 27.8% 3.5% 1.7% 2007-07-18


StatCounter (2008 to present)

Global Stats from StatCounter (Top 5 browsers)
Date

Internet

Explorer


Firefox



Safari



Chrome



Opera



Netscape



2009-11 November 2009 56.57 % 32.21 % 3.67 4.66 % 2.02 %
2009-10 October 2009 57.96 % 31.82 % 3.47% 4.17 % 1.88 %
2009-09 September 2009 58.37 % 31.34 % 3.28% 3.69 % 2.62 %
2009-08 August 2009 58.69 % 31.28 % 3.25% 3.38 % 2.67 %
2009-07 July 2009 60.11 % 30.50 % 3.02% 3.01 % 2.64 %
2009-06 June 2009 59.49 % 30.26 % 2.91% 2.80 % 3.46 %
2009-05 May 2009 62.09 % 28.75 % 2.65% 2.42 % 3.23 %
2009-04 April 2009 61.88 % 29.67 % 2.75% 2.07 % 2.96 %
2009-03 March 2009 62.52 % 29.40 % 2.73% 1.73 % 2.94 %
2009-02 February 2009 64.43 % 27.85 % 2.59 % 1.52 % 2.95 %
2009-01 January 2009 65.41 % 27.03 % 2.57 % 1.38 % 2.92 %
2008-12 December 2008 67.84 % 25.23 % 2.41 % 1.21 % 2.83 %
2008-11 November 2008 68.14 % 25.27 % 2.49 % 0.93 % 3.01 %
2008-10 October 2008 67.68 % 25.54 % 2.91 % 1.02 % 2.69 %
2008-09 September 2008 67.16 % 25.77 % 3.00 % 1.03 % 2.86 %
2008-08 August 2008 68.91 % 26.08 % 2.99 % 1.83 % 0.07 %
2008-07 July 2008 68.57 % 26.14 % 3.30 % 1.78 % 0.07 %


Mail.ru (Russia, 2009 to present)

Russiamarker usage share data from Mail.ru ( Daily reports, not archived)
Access date

Internet

Explorer


Firefox



Safari



Chrome



Opera



Netscape



SeaMonkey



2009-09-20 September 20, 2009 45.17 % 21.93 % 0.29 % 2.13 % 28.82 % 0.01% 1.65 %
2009-08-18 August 18, 2009 45.59 % 21.96 % 0.34 % 2.29 % 28.28 % 0.01% 1.52 %
2009-06-09 June 9, 2009 53.03 % 18.84 % 1.16 % 2.24 % 24.33 % (N/A) 0.40 %


Older reports

WebSideStory (USA, 1999 to 2006)

USA usage share data from: WebSideStory
Date Internet Explorer Netscape / Mozilla Firefox Source
June 2006 86.64% 9.95% July 19, 2006
January 5, 2006 87.63% 8.88% Jan. 12, 2006
November 4, 2005 88.16% 1.61% 8.13% November 10, 2005
September 23, 2005 88.46% 1.69% 7.86% September 27, 2005
April 29, 2005 88.86% 2.23% 6.75% May 10, 2005
February 18, 2005 89.85% 2.47% 5.69% Feb. 28, 2005
January 14, 2005 90.28% 2.64% 4.95%
December 3, 2004 91.80% 2.83% 4.06%
November 5, 2004 92.89% 2.95% 3.03%
October 8, 2004 93.21% 3.05% 2.66% December 13, 2004
June 4, 2004 95.48% 3.53%
August 26, 2002 95.97% 3.39% August 28, 2002
October 25, 2001 89.03% 10.47% October 31, 2001
April 25, 2001 86.61% 13.10% May 1, 2001
February 21, 2001 87.71% 12.01% February 22, 2001
June 18, 2000 86.08% 13.90%
August 2, 1999 75.31% 24.68% August 9, 1999
April 6, 1999 68.75% 29.46% April 7, 1999
March 1, 1999 66.90% 31.21% March 2, 1999
February 8, 1999 64.60% 33.43% February 22, 2001


GVU WWW User Survey (1994 to 1998)

Usage share data from: GVU WWW User Survey
Date Mosaic Netscape Navigator Internet Explorer Source
October 1998 64% 32.2% Primary Browser in 12 Months
April 1998 70% 22.7% Browser Expected to Use in 12 Months
October 1997 59.67% 15.13% Browser Expected to Use in 12 Months
April 1997 81.13% 12.13% Browser Expected to Use in 12 Months
October 1996 80.45% 12.18% Browser Expected to Use in 12 Months
April 1996 89.36% 3.76% Browser Expected to Use in 12 Months
April 1995 9% 54% Hal Berghel's Cybernautica - "A Web Monopoly"
October 1994 68% 18% Result Graph - Browser
January 1994 97% General Results Graphs


EWS Web Server at UIUC (1996 to 1998)

Usage share data from: EWS Web Server at UIUC
Date Mosaic Internet Explorer Netscape Navigator Source
1998 Q4 50.43% 46.87% Oct 1998, Nov 1998, Dec 1998
1998 Q3 47.90% 48.97% Jul 1998, Aug 1998, Sep 1998
1998 Q2 43.17% 53.57% Apr 1998, May 1998, Jun 1998
1998 Q1 39.67% 57.63% Jan 1998, Feb 1998, Mar 1998
1997 Q4 35.53% 62.23% Oct 1997, Nov 1997, Dec 1997
1997 Q3 32.40% 64.93% Jul 1997, Aug 1997, Sep 1997
1997 Q2 0.37% 27.67% 69.77% Apr 1997, May 1997, Jun 1997
1997 Q1 0.60% 22.87% 74.33% Jan 1997, Feb 1997, Mar 1997
1996 Q4 1.20% 19.07% 77.13% Oct 1996, Nov 1996, Dec 1996
1996 Q3 2.47% 13.97% 80.37% Jul 1996, Aug 1996, Sep 1996
1996 Q2 6.93% 9.60% 82.77% Apr 1996, May 1996, Jun 1996


ZD Market Intelligence (USA, 1997 to 1998)

Usage share data from: ZD Market Intelligence
Date Internet Explorer Netscape Navigator Source
January 1998 39% 54% Behind the numbers: Browser market share
January 1997 21% 63%


Zona Research (USA, 1997 to 1998)

Usage share data from: Zona Research
Date Internet Explorer Netscape Navigator Source
July 1998 45% 54% Behind the numbers: Browser market share
September 1997 36% 62%
January 1997 28% 70%


AdKnowledge (1998)

Usage share data from: AdKnowledge
Date Internet Explorer Netscape Navigator Source
June 1998 46% 52% Behind the numbers: Browser market share
March 1998 42% 57%
January 1998 36% 61%


Dataquest (1995 to 1997)

Usage share data from: Dataquest
Date Internet Explorer Netscape Navigator Source
1997 39.4% 57.6% Browser wars: High price, huge rewards
1996 20% 73%
1995 2.9% 80.1%


International Data Corporation (USA, 1996 to 1997)

Usage share data from: International Data Corporation
Date Internet Explorer Netscape Navigator Source
1997 23% 51% Behind the numbers: Browser market share
1996 16% 55%


See also



References

  1. https://developer.mozilla.org/en/docs/Using_Firefox_1.5_caching


External links

  • Chuck Upsdell's Browser Stats lists web stats from many different stats sources and gives the approximate current usage share of the most popular layout engines.
  • Clicky Web Analytics lists data from over eighty thousand unique web sites
  • StatCounter Global Stats tracks the market share of search engines, browsers and operating systems including mobile from over 4 billion monthly page views.
  • W3Schools' Browser Statistics lists the web stats only from the W3 Schools site, which gives the approximate usage share of browsers among "people with an interest for web technologies."



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