phickspc said

When I disable the enterprise policy, firefox will instantly try to update me to the latest version 71.0, but I only want to update to 69 or 70, but not 71.0, so how can I do that on an existing portable installation?

If you are using Firefox Portable Edition from PortableApps.com - thy have their own support forum over here: http://portableapps.com/forums/support/firefox_portable

I am of no help as I haven't used Firefox Portable Edition since like Firefox 41 or thereabouts; older versions that didn't have very much in the way of enterprise policies.

The only way to update manually is via a suitable update.mar file, either a complete update or a partial update. I'm on Linux and can't install a portable Firefox version and I don't know how an update for this version works.

Here is a description for Firefox on desktop.

• https://wiki.mozilla.org/Software_Update:Manually_Installing_a_MAR_file

okay will ask portable forum thanks

Why 69 or 70 but not 71?

Have you considered staying on the Extended Support Release of Firefox 68 with security patches?

• https://www.mozilla.org/firefox/enterprise/
• Switch to Firefox Extended Support Release (ESR) for personal use
• https://portableapps.com/apps/internet/firefox-portable-esr

I've considered ESR but then I can't upgrade ESR to the one I want I'd have to start again and copy over profile and then manually redo my about:config settings

Solution: Downloaded & Installed portable version of my choice into same directory of existing firefox browser. Launched and confirmed that all my about:config settings, enterprise policies and profile had indeed been preserved, but the version had indeed updated! Thank you!

I have the same question...

In Google chrome there is an option which controls the highest version that can be installed from the Internet.

So how can i control the version of Firefox in an enterprise with thousands of computers?

Ben

Hi rabeb00

You can consider to block updates to prevent users from updating their Firefox version.

• https://support.mozilla.org/en-US/kb/customizing-firefox-using-group-policy
• https://support.mozilla.org/en-US/kb/customizing-firefox-using-policiesjson

See DisableAppUpdate:

• https://github.com/mozilla/policy-templates/blob/master/README.md