Recent answers to Earlier versions available?https://support.mozilla.org/mk/questions/13546172021-10-19T03:06:28-07:00You need Firefox 78.15.0 ESR for Mac OS X 10.11
Firefox 78.15.0 ESR:
https://www.mozilla.org/en-US/2021-10-19T03:06:28-07:00cor-elhttps://support.mozilla.org/mk/questions/1354617#answer-1452253<p>You need Firefox 78.15.0 ESR for Mac OS X 10.11
</p><p>Firefox 78.15.0 ESR:
</p>
<ul><li><a href="https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr" rel="nofollow">https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr</a>
</li><li><a href="https://www.mozilla.org/en-US/firefox/78.15.0/system-requirements/" rel="nofollow">https://www.mozilla.org/en-US/firefox/78.15.0/system-requirements/</a>
</li><li><a href="https://support.mozilla.org/en-US/products/firefox-enterprise/whats-new-firefox-enterprise" rel="nofollow">https://support.mozilla.org/en-US/products/firefox-enterprise/whats-new-firefox-enterprise</a>
</li></ul>
<p>Note that the current Firefox 78.15.0 is the last version for your Mac OS X platform (mozilla-mac-eol-esr1), so you will no longer receive updates.
</p>
<ul><li><a href="https://support.mozilla.org/en-US/kb/firefox-mac-osx-users-esr" rel="nofollow">https://support.mozilla.org/en-US/kb/firefox-mac-osx-users-esr</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac" rel="nofollow">https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac</a>
</li></ul>Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release
Firefox 78 is the last2021-10-19T02:55:56-07:00AliceWymanhttps://support.mozilla.org/mk/questions/1354617#answer-1452251<p><a href="/en-US/kb/firefox-mac-osx-users-esr" rel="nofollow">Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release</a>
</p><p>Firefox 78 is the last supported version. You can download the latest Firefox 78esr installer for macOS 10.11 using one of these links:
<a href="https://download.mozilla.org/?product=firefox-esr-latest-ssl&amp;os=osx&amp;lang=en-US" rel="nofollow">https://download.mozilla.org/?product=firefox-esr-latest-ssl&amp;os=osx&amp;lang=en-US</a>
<a href="https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr" rel="nofollow">https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr</a>
</p>Step two:
Note: Some versions of Quantum change how the data
files are set up, so they may not be ba2021-10-19T02:39:39-07:00fredmcd-hotmailhttps://support.mozilla.org/mk/questions/1354617#answer-1452238<p>Step two:
<strong>Note:</strong> Some versions of Quantum change how the data
files are set up, so they may not be backward compatible&#46;
</p><p><a href="https://support.mozilla.org/en-US/kb/install-older-version-firefox" rel="nofollow">Install Older Version Of Firefox</a> {web link}
Be sure to read everything here.
</p><p>If you still want to downgrade, look under;
<strong>I still want to downgrade. </strong>
Click the <strong>Directory of other versions and languages</strong> link.
Look for the directory of the version that you want.
But, remember that <strong>old versions may have security issues. </strong>
</p><p>Note: If you know what version you want, press
<strong>&lt;Control&gt; <em>(Mac=&lt;Command&gt;)</em> F</strong> to open the search bar.
Then enter the version number to see the available files.
</p><p><br>
You should also check out
<a href="https://www&#46;mozilla&#46;org/en-US/firefox/organizations/" rel="nofollow">Firefox; Extended Support Release</a> {web link}
<a href="https://www&#46;mozilla&#46;org/en-US/firefox/organizations/notes/" rel="nofollow">ESR Notes</a>
<a href="https://www&#46;mozilla&#46;org/en-US/firefox/organizations/system-requirements/" rel="nofollow">System Requirements</a>
</p>Step one:
How do you completely turn off update checks in Firefox v64?
You can use a policies.js2021-10-19T02:39:28-07:00fredmcd-hotmailhttps://support.mozilla.org/mk/questions/1354617#answer-1452236<p>Step one:
How do you completely turn off update checks in Firefox v64?
You can use a policies&#46;json file to disable updates for all users&#46;
https://github&#46;com/mozilla/policy-templates/blob/master/README&#46;md
or
https://winaero&#46;com/blog/disable-updates-firefox-63-above/
</p><p>You can use a policies&#46;json file in the distribution folder in the Firefox installation folder instead as also listed in the article, so no need to use GPO keys in the Windows Registry&#46;
• https://support&#46;mozilla&#46;org/en-US/kb/customizing-firefox-using-policiesjson
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
</p><p>You can use the ManualAppUpdateOnly policy in Firefox 87+ to enable only manual updates e.g. via "Help -&gt; About Firefox".
</p>
<ul><li> <a href="https://github.com/mozilla/policy-templates#manualappupdateonly" rel="nofollow">https://github.com/mozilla/policy-templates#manualappupdateonly</a>
</li><li> <a href="https://support.mozilla.org/en-US/kb/customizing-firefox-using-policiesjson" rel="nofollow">https://support.mozilla.org/en-US/kb/customizing-firefox-using-policiesjson</a>
</li></ul>
<p>Note that it is important to stay up to date and install the latest security patches.
</p>
<ul><li> <a href="https://www.mozilla.org/security/known-vulnerabilities/firefox.html" rel="nofollow">https://www.mozilla.org/security/known-vulnerabilities/firefox.html</a>
</li></ul>