Firefox For Mavericks

In a nutshell, I have a late-2013 MacBook Pro running OS 10.9 Mavericks. Firefox worked until it it didn't. It wouldn't open at all, it crashed my computer. I uninstalled It believe it was firefox 25 and downloaded the latest one, firefox 26, it too worked for a day or two, disappears on its own from the dock. This is what shows up on the screen.

On that date, users of Firefox still running OS X 10.9 (Mavericks), 10.10 (Yosemite) and 10.11 (El Capitan) on their Macs will instead be shunted to the extended channel and given 78.0 ESR. While that and Firefox 78 will be identical, when the latter shifts to version 79 four weeks later, ERS will remain at 78, increased to 78.1 to mark its. Download OS X Mavericks for Firefox. Report this add-on for abuse. If you think this add-on violates Mozilla's add-on policies or has security or privacy issues, please report these issues to Mozilla using this form. Functions can be added through add-ons, created by third-party developers, of which there is a wide selection, a feature that has attracted many of Firefox's users. Mozilla Firefox is a cross-platform browser, providing support for various versions of Microsoft Windows, Mac OS X, and Linux. Firefox Features. Improved Tabbed Browsing; Spell Checking. Open Firefox, and enter about:config in the address bar. Dismiss the warning that appears. If you have Mac OS X 10.9 (Mavericks) or later.

Problem loading page.Unable to connect, Firefox can't establish a connection to the server at

title of this thread was edited by a moderator

Starting with Firefox version 49, Firefox requires Mac OS X 10.9 (Mavericks) or higher. Visit this Apple Support page to find your Mac OS version.

If you're using an outdated version of Firefox on Mac OS X 10.8 (Mountain Lion) or earlier, the only way you can update Firefox to a secure version is to upgrade your Mac OS to a version that Apple supports. Visit this Apple Support page to learn more about upgrading your Mac.

Note: If you have Mac OS X 10.7 (Lion) or 10.6 (Snow Leopard), you will need to download OS X El Capitan before you can upgrade to the latest Mac OS.
Firefox For Mavericks

Firefox For Mavericks Windows

While insecure versions of Firefox will continue to work on OS X 10.8 and earlier, using an up-to-date version of Firefox on a supported version of Mac OS will provide you with the best and safest user experience.