Firefox version history

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This is the version history of the Firefox web browser.

Video Firefox version history

Current and future releases

Maps Firefox version history

Release history

The tables below are in chronological order by release number, so the oldest still-supported versions and most recently available versions are found in the bottom table(s).

Early releases through version 4

Rapid releases

Versions 5 through 9

From now on, Gecko version numbering is same as Firefox build version number, starting 5.0 on Firefox 5.

Versions 10 through 19

Versions 20 through 29

Versions 30 through 39

Versions 40 through 49

Versions 50 through 59

Note: Dates in the future indicate a scheduled release date; they are subject to change in the event of unanticipated complications.

Versions 60 through 69

Note: Dates in the future indicate a scheduled release date; they are subject to change in the event of unanticipated complications.

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CPU architectures

x86 family

Native 64-bit builds are officially supported on Linux, macOS, and Windows (since version 42).

Mozilla made Firefox for 64-bit Linux a priority with the release of Firefox 4, labeling it as tier 1 priority. Since being labeled tier 1, Mozilla has been providing official 64-bit releases for its browser for Linux. Vendor-backed 64-bit support has existed for Linux distributions such as Novell-Suse Linux, Red Hat Enterprise Linux, and Ubuntu prior to Mozilla's support of 64-bit, even though vendors were faced with the challenge of having to turn off the 64-bit JIT compiler due to its instability prior to Firefox 4.

The official releases of Firefox for macOS are universal builds that include both 32-bit and 64-bit versions of the browser in one package, and have been this way since Firefox 4. A typical browsing session uses a combination of the 64-bit browser process and a 32-bit plugin process, because some popular plugins still are 32-bit. As of April 19, 2017, Firefox 53 has dropped support for 32-bit macOS.

The 32-bit and 64-bit versions of Windows can be used to run 32-bit Firefox. In late 2012, Mozilla announced 64-bit Windows builds would be stopped but later reversed the decision. As of April 2015, 64-bit Windows builds are available as 38.0 Beta and newer. 64-bit builds for Windows are officially supported as of November 2015 with the release of Firefox 42. All NPAPI plugins except Adobe Flash Player are blacklisted and unsupported on both 32 and 64-bit versions.

Other CPU architectures

Besides x86, Firefox also supported other CPU architectures including ARMv7, SPARC, PowerPC, and 68k on different tiers. Mozilla terminated support for PowerPC-based Macintosh computers with Firefox 3.6, but a third-party project known as TenFourFox ported several newer versions of Firefox, the latest being based on Firefox 45 ESR.

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Mozilla Firefox timeline

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Security Bug Bounty Program

In the Mozilla Security Bug Bounty Program, a bounty payment is offered to those reporting unknown security bugs. The Mozilla Foundation say that this is "designed to encourage security research in Mozilla software and to reward those who help us".

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See also

• History of Firefox

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Notes

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References

Source of article : Wikipedia