Firefox 3.6.x reaches end of life

As expected the 3.6.x branch of Mozilla’s open source Firefox web browser reached its end of life on Tuesday 24 April – no further updates, including security updates and critical fixes, will be made available for the series. According torecent Platform Meeting Notes, users running Firefox 3.6.13 to 3.6.28 should have already started receiving “Major Update” prompts asking them to upgrade to the latest stable release of the browser. All of these users are advised to upgrade as soon as possible.

A number of users and organisations previously stayed on the legacy branch of Firefox due to worries over Mozilla’s new Rapid Release process, which sees a new update to the browser arrive every six weeks. For enterprises, this meant they wouldn’t have sufficient time to test and certify any given version before the next one was released. To address these concerns, Mozilla created an Extended Support Release (ESR) of Firefox aimed at enterprises and other large organisations.

Alongside the release of Firefox12 yesterday, Mozilla also updated Firefox ESR, which is currently based on Firefox 10, to version 10.0.4. The update is the first ESR release to complete the qualification phase of the ESR life cycle which is designed to ensure the quality of the release.

The new ESR release fixes various bugs and closes a total of 11 security holes, including six critical vulnerabilities for problems related to WebGL, OpenType Sanitizer, font-rendering with Cairo, gfxImageSurface, IBMKeyRange, FreeType and miscellaneous memory safety hazards. Firefox ESR 10.0.4 is available todownload from the project’s site for Windows, Mac OS X and Linux.

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