Firefox for Enterprise Community Forum

Hi All, I want to block traffic on firefox externally for managed devices via Intune, following the import of the ADMX/ADML files into intune.

Having read https://support.mozilla.org/en-US/kb/managing-firefox-intune I have set '\Mozilla\Firefox\Exceptions to blocked websites' to the following; //*.mydomain.com/*

Which works, however, I also want to add hosts that are only resolving on IPs and not DNS. I can add specific IPs if known, but is there a way I can allow IP ranges? Ie

//10.10.*/* (this doesn't currently work) Of the included screenshot, only the wildcard for mydomain.com and the specific IP currently work

I've looked over the link that is recommened in the policy (indirectly) and can't see an option for allowing an IP range. https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Match_patterns

If there is a better way to do this via intune for firefox only, please let me know.

Thanks

My original intent was to customize firefox with userChrome.js scripts. However /defaults/pref directory is nowhere to be found.

Tested on both apple silicone and intel macs running macos sequoia 15.3, firefox 135.

Custom userChrome.css files are in use but I don't think it matters.

I did use browser console to find and recheck file directories. Going through every folder in both firefox.app/contents and /Users/(myname)/Library/Application Support/Firefox/ showed nothing.

Show hidden files are turned on, and the following commands via terminal showed no valid responses.

sudo open /Applications/Firefox.app/Contents/Resources/defaults/pref

open /Applications/Firefox.app/Contents/Resources/defaults/pref

cd /Applications/Firefox.app/Contents/Resources ls -la cd defaults ls -la cd pref ls -la

find /Applications/Firefox.app -name "pref" 2>/dev/null

https://www.mozilla.org/en-US/newsletter/security-and-privacy/?_gl=1%2A10lky38%2A_ga%2AMTE0NzMyMTQ0My4xNzM3ODkwNTA0%2A_ga_YXT33S87LT%2AMTczOTAyMDM4MS42LjEuMTczOTAyMTgyNS4wLjAuMA..

Trying to block www.share365.net but it's not working

{

 "policies": {
     "WebsiteFilter": {
         "Block": [
           "*:share365.net",
           "*:www.share365.net",
           "*://share365.net/*"
         ]
     }
 }

}

Hello community,

i would like to ask about how to deploy security.pki.certificate_transparency.disable_for_hosts globally for users? With version 135 a lot of production webapps stopped working and as of now , we have to do manual modification in about:config. Our company has over 300k users , so the possible disruption might arise very quickly and there will be significant loses in production enviroment.

Is there a way how to deploy this specific setting via GPO/SCCM ?

Thank you

I need assistance with updating an old version of Firefox installed in the local AppData folder on our users' machines. We currently use Intune for application management, but I'm unsure how to remove the user-based installation and revert to a system installation without losing bookmarks.

Could you please provide guidance on how to:

1. Numbered list item Force update Firefox to the latest version while keeping user data intact.

2. Remove the user-installed version of Firefox using Intune.

3. Ensure that bookmarks are preserved during the update process.

Thank you for your help!