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Firefox Legacy

'This, combined with the impact of the release of Mac OS X 10.8 Mountain Lion, means that Mac OS X 10.5 users will likely make up around 10% of Mac OS X users when Firefox 17 ships.' If you see “(32-bit)” and you are running Firefox 56.0 or older, updating to the latest Firefox version should automatically upgrade you to 64-bit. If you see “(32-bit)” and are running Firefox 56.0.1 or newer, then your computer may not meet the minimum memory requirement for 64-bit (3 GB RAM or more).

Having previously added Mac OS gesture support (albeit without Safari’s slick graphical flair), Firefox 14 now fully embraces Lion’s Fullscreen mode.

Firefox Legacy is an unofficial modified version of Mozilla Firefox that works on older Mac OS X versions, including 10.6 Snow Leopard, 10.7 Lion, and 10.8 Mountain Lion.

Download it now and breathe new life into your old Mac.

OS X 10.8 Mountain Lion

Current version for OS X 10.8 Mountain Lion: 71.0p2 (2020-09-15)
IMPORTANT NOTE ABOUT UPDATING TO v71: A new Firefox profile will be created when you update from earlier versions to version 71.0. To restore your previous data, type 'about:profiles' in the address bar, then find your previous profile (if you can't tell which, try each one) and set it as default. Then, restart Firefox Legacy. I apologize for the inconvenience; the cause of this issue is not known.

OS X 10.7 Lion

Current version for OS X 10.7 Lion: 68.12.0p3 (2021-01-24)
Now featuring support for numerous newer web standards, including Push, Service Workers, Feature Policy, ResizeObserver, Promise Rejection Events, more of the Animations API, and several CSS features. This should improve compatibility with many websites.
For security and privacy reasons, starting in version 68.12.0p3, support for TLS 1.0 and 1.1, HPKP, and the Battery API is disabled.

OS X 10.6 Snow Leopard

Only Firefox 52 is available for OS X 10.6 Snow Leopard; it will not be updated to a recent version due to technical limitations of the OS.
Note: the program is called 'Nightly' due to licensing restrictions prohibiting the use of the official Firefox branding.

Current version for OS X 10.6 Snow Leopard: 52.9.1p1 (2020-04-11)

Firefox Legacy speaks your language!

Any of the language packs for the matching official Firefox version are supported.

• List of language codes (to help you locate the right file to download)

Small areas of the about screen and the help menu that are specific to Firefox Legacy will remain untranslated.

Known Issues

• Small problems with displaying right-to-left languages on OS X 10.7
• The crash reporter does not work on OS X 10.7 or 10.8 (it itself crashes)
• A useless empty share menu is visible on OS X 10.7
• The sandbox (a security feature intended to protect you from malicious websites) does not work, and has been disabled
• On OS X 10.7, the browser crashes when the camera or microphone are used
• WebGL does not work on computers with GPUs not supporting OpenGL 3.0 (many 2006-2007 Macs)
• Some buttons are invisible on Google Calendar, WordPress, and other sites that use font-based icons
• DRM (Encrypted Media Extensions/Widevine) does not work
• Version 68.12.0 only: Screen capture does not work and has been disabled
• Version 71.0 only: The progress bar is not visible on the icons of downloading files in the Finder

File Details
File Size	122.1 MB
License	Freeware
Operating System	Mac OS X
Date Added	February 23, 2021
Total Downloads	227,925
Publisher	Mozilla
Homepage	Mozilla Firefox

Publisher's Description

Mozilla Firefox is a free and open source Web browser descended from the Mozilla Application Suite and managed by Mozilla Corporation. Firefox is the second most widely used browser.

To display web pages, Firefox uses the Gecko layout engine, which implements most current web standards in addition to several features that are intended to anticipate likely additions to the standards.

Get me a lot of errors when I open the browser

I've had nothing but problems with Firefox 39.0 (using on my MacBook Pro OS X 10.6.8). In order to quit, I have to force quit. It freezes up continually. I'm about to uninstall it and start using a different browser. I'd give it a 0 stars if I could.

Here's the first review in 3 years.
This version is smooth and fast performing, literally taking many of it's looks and ideas directly from Google Chrome.
Along with smooth performance comes better memory management.
Firefox is probably the most configurable browser as well.

Seems to work great with Mountain Lion 10.8.1 and updating Firefox from ver 14.
Appears to have flawless integration.

Doesn't work on Tiger (MacOS X 10.4.x for the non-cognoscenti...), hence the low rating. It's a shame really: Mozilla is following in Google's footsteps when it comes to Apple OSes, and forgets that not all Mac users can or want to switch to Snow Leopard. Might as well spit in our eye... Take Opera as the (perfect) counter-example, they who have recently launched a new version of their browser that's really multi-platform. Shame on you, Gorgonzilla! (pardon the cheesy pun...)

windows screenshot :(

Work like hell with JIT default enabled !!!

Still the best!

The BEST browser form me !!!
Secure, fast, stable and powerfull with extensions !!!

The BEST browser form me !!!
Secure, fast, stable and powerfull with extensions !!!

Pros: Nice smooth

Cons: A lot of errors

Bottom Line: Get me a lot of errors when I open the browser

I've had nothing but problems with Firefox 39.0 (using on my MacBook Pro OS X 10.6.8). In order to quit, I have to force quit. It freezes up continually. I'm about to uninstall it and start using a different browser. I'd give it a 0 stars if I could.

Here's the first review in 3 years.
This version is smooth and fast performing, literally taking many of it's looks and ideas directly from Google Chrome.
Along with smooth performance comes better memory management.
Firefox is probably the most configurable browser as well.

Seems to work great with Mountain Lion 10.8.1 and updating Firefox from ver 14.
Appears to have flawless integration.

Doesn't work on Tiger (MacOS X 10.4.x for the non-cognoscenti...), hence the low rating. It's a shame really: Mozilla is following in Google's footsteps when it comes to Apple OSes, and forgets that not all Mac users can or want to switch to Snow Leopard. Might as well spit in our eye... Take Opera as the (perfect) counter-example, they who have recently launched a new version of their browser that's really multi-platform. Shame on you, Gorgonzilla! (pardon the cheesy pun...)

Firefox For Mac Os

windows screenshot :(

Work like hell with JIT default enabled !!!

Still the best!

The BEST browser form me !!!
Secure, fast, stable and powerfull with extensions !!!

The BEST browser form me !!!
Secure, fast, stable and powerfull with extensions !!!

The BEST browser form me !!!
Secure, fast, stable and powerfull with extensions !!!

In my opinion Firefox doesn't even compare to Camino: www.caminobrowser.org . Even better in my eyes is webkit: www.webkit.org . Webkit is the fastest browser I have found for Mac & is updated several times per week.
Back to Firefox, I have tried Firefox 2 & 3beta. My experience was not good. The layout of browser menus & such drove me crazy. The browser was slower than Camino to open & slower to load webpages. This is on my 1gz imac with 1gig ram.

The flexibility is the key here and anti-phishing support is important, as well. The developers have been cleaning up the Gecko renderer and crashing is all but a distant memory. Using version 2.x with Leopard instantly improves text display, which seems odd, since Mozilla didn't change anything in Leopard. Has Apple been holding back all this time to make third parties look bad?
Version 3.0 is still about two months out and truly improves all facets of the browser.

Firefox For Mac Lion Os X Download

It's quite a bit better than earlier beta releases. The new theme was a bit shocking with its all silver/graphite look, but it will please the Safari crowd in that it doesn't look anything like something on Windows. (They'll still complain anyway.)
Performance is good but still has a way to go before it's ready for everyone. Startup and shutdown of the browser is slow. Once launched, it's quite speedy--faster than the current Safari but not the Safari beta.
Apparently, memory leaks have been addressed strongly and that's helped a lot to aid stability. It really doesn't feel like a beta but add-ons still don't work.

Update Firefox Mac Os X

Firefox Mac Os 10.7 Lion

Gran Paradiso is a huge improvement over the previous version of Firefox. The Cocoa interface makes Firefox comparable to the speeds of Camino, and switching through tabs is way faster than on Windows or Linux versions. Considering all the improvements Firefox's going to have, this version is going to be the most anticipated release ever.