VisualEditor/Target browser matrix

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The unofficial rule for Wikimedia's browser support is that we try to support reading (and not necessarily other functions) for all browsers used by at least 0.1% of page hits based on the WikiStats data. However, VE is complex and requires some specific advanced browser features (most specifically, ContentEditable support, but also very wide JavaScript support), which limits the platforms we can support either technically (indicated by being struck through) or resource-wise (indicated with a N).


Probable VisualEditor support
Data as of October 2013
Browser Desktop Tablet Mobile
Overall share Version Share Overall share Version Share Overall share Version Share
Android N/A Less than 0.1% 0.40% 4.3 8.64% 4.3 0.31%
4.2 0.06% 4.2 1.18%
4.1 0.14% 4.1 3.52%
4.0 0.14% 4.0 1.45%
Less than 0.1% 2.3 1.94% N
2.2 0.17% N
Chrome[1] 33.93% 32.0 0.06% N/A Less than 0.1% N/A Less than 0.1%
31.0 0.16%
30.0 25.31%
29.0 5.29%
28.0 0.69%
27.0 0.33%
26.0 0.24%
25.0 0.51%
24.0 0.13%
23.0 0.12%
22.0 0.12%
21.0 0.19%
9.0 0.18% N
Firefox 11.66% 27.0 0.02% N/A Less than 0.1% 0.04% Less than 0.1%
26.0 0.02%
25.0 0.25%
24.0 8.47%
23.0 0.66%
22.0 0.2%
21.0 0.15%
20.0 0.14%
17.0 0.24%
16.0 0.13%
12.0 0.13% N
10.0 0.1% N
9.0 0.1% N
3.6 0.24% N
Mozilla 4.33%[2] 5.0 4.12% N 0.13% 5.0 0.13% N 1.02% 5.0 0.65% N
4.0 0.37% N Less than 0.1% 5.0[3] 0.11% N
MSIE 15.17% 10.0 6.55% 0.24% 8.0 0.18% ? 0.03% Less than 0.1%
9.0 2.91% Less than 0.1%
8.0 4.18% N
7.0 1.19% N
6.0 0.30% N
Opera 1.53% 12.16 0.96% N/A Less than 0.1% 1.17% 11.10 (Mini/7.5) 0.32% N
12.15 0.17% 11.10 (Mini/7.1) 0.22% N
Less than 0.1% 11.10 (Mini/4.2) 0.16% N
Safari[4] 2.36% 0.0 2.36% 0.36% iPad 4.16% 1.63% iPhone 8.09%
Less than 0.1% 0.0 0.36% 0.0 1.09%
iPod 0.51% Less than 0.1%
  1. This includes Chromium, Chrome's open source version, which identifies as "Chrome" in its user agent.
  2. This is very suspicious, and is probably mostly mis-placed Firefox clients.
  3. This looks to be a data corruption error; probably "Mozilla 5.0 (compatible, ...)".
  4. Including iPod, iPad and iPhone as appropriate.

Notes:

Android – 4.0+ (no current automated testing)
Android before v. 3.0 does not support ContentEditable, so we will have to fall back to wikitext editing.
Chrome – 19.0+; 29.0+ actively tested
Chrome has auto-update (but rapid version increases); VE team roughly intend to actively support only the current, soon-to-be-current, and two immediately previous versions, though we intend for all versions at 19.0 and above to work without issue (including forks like Iceweasel). Versions below 19.0 may be possible to support if necessary.
Firefox – 15.0+; 23.0+ actively tested
Firefox has auto-update (but rapid version increases); VE team roughly intend to actively support only the current, soon-to-be-current, and two immediately previous versions, though we intend for all versions at 15.0 and above to work without issue (including forks like Iceweasel). There are some technical issues that prevent Firefox 10.0 to 14.0 from being removed from the blacklist; these are solvable if necessary (see bug). Versions below 10.0 lack necessary technological support. Firefox ESR is supported only if the underlying version is supported, so Firefox ESR 10 is not currently supported, but Firefox ESR 17 and Firefox ESR 24 should work fine.
Mozilla – No support
Mozilla itself is an ancient browser, and cannot be supported due to technological issues. Lots of browsers are mis-reported as Mozilla but are in fact much more modern, and should work without issue.
MSIE (Internet Explorer) – 9.0+ (currently suspended)
Each version of MSIE is differently broken, and adds significant support burden. However, as it is still relatively popular, the team intend to support 9.0 and upwards. Versions below 9.0 suffer from a a variety of missing key technologies which mean they cannot be made to work with VisualEditor.
Opera – 12.00+ (no current automated testing)
Opera Desktop (from 12.00 onwards) is a cousin of Chrome, and should work without incident. Opera Mini does not support contentEditable, so VisualEditor can never work on it.
Safari – 5.0+ (no current automated testing)
Safari Desktop is a cousin of Chrome, and should work without incident. Safari on iOS (iPad/iPhone/iPod) has very wide-spread auto-update; VE team roughly intend to actively support only the current, soon-to-be-current, and immediately previous version only.