I-Firefox Community Forum

Every time I open Firefox, the checkbox next to "Opening links in tabs" always disappears, even though I've checked it in previous sessions. How can I make it permanent?

I use Firefox on the Linux Mint operating system.

Is anyone looking into this? I found an article that told me to remove some cash files and it seemed to fix the issue but it continues to reoccur. Some apps such as MS360 Outlook seem to trigger it, but if it was truly just a corrupt cache issue then cleaning the cash/profile once should have fixed the issue. Instead its become a constant pain in the *** and I'm tempted to find another browser. Seems very recent as well as I've never had issues with firefox before.

Ubuntu 24 Mozilla Firefox 151.0.3

I am still waiting for you to remove Show All in config:editor. It was unnecessary and unwanted by your users. Just allow us to access config:editor the way we used to before this moronic change.

When attempting to load additional screen connected to my bank it does not work as intended. We trouble shot: we disabled Auto fill and PopUps. What other steps should I take?

I am trying to configure our Firefox configuration via Intune and need to use the OMA-URI: ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Preferences with the following JSON:

<enabled/> <data id="JSON" value=' {

 "dom.disable_window_flip": {
       "Value": true,
       "Status": "locked"
     },
   "dom.disable_window_move_resize": {
       "Value": true,
       "Status": "locked"
     },
"network.http.http3.enable": {
       "Value": false,
       "Status": "locked"
 }

}'/>

I do not have any of the Deprecated preference settings in use.

The error presented is -2016281112 and checking the respective settings in about:config on a synchronised device shows that the settings have not applied.

Any help would be appreciated.

Thanks!

I signed in to https://accounts.firefox.com to sync Firefox on iPhone iOS 26 and got a sign in from an unexpected location.

Firefox iOS on iOS 18.7 Toronto, ON, Canada (estimated) Tuesday, Jun 9, 2026 11:43:14 AM (EDT)

I am in the NY,US and do not own any iOS 18.7 device.

Can you give me more information why the jump to a foreign device?

I play https://crazyshooters.com/ and https://crazyshooters2.com/ a lot! But the game became laggy since Firefox 148 and my ping spikes up. Other browsers play fine. I am on Linux Mint if that helps. (147 and below run fine)

After I key in all my passwords they disappear after a while. sometimes they last a week of two,and other times just a few days. One time it happened when fire fox did a update . Any help would be appreciated.

[edited email from community support forum]

Updated to FF 150 today on Win 11 desktop.

Q1: Can I remove Profiles from the FF toolbar which is located in between Bookmarks and Tools? Only need one profile on this PC. I tried to customize the toolbar but it won't let me drag Profiles off.

Q2: For some reason my FF profile is now on C: even though I had previously moved it to D: to free up space on C: boot drive.

So I created a new profile with exact same folder name on my D: drive today.

In Profile Manager, I renamed the old profile on C: to "name.old and the new one on D: to "name.new". I set name.new as the default profile and it works properly after exiting and restarting FF.

Now I want to delete the .old profile but FF won't left me, saying Can’t delete a profile that is linked to other profiles. There are only the .old and .new profiles listed. So how do I unlink .old so I can delete all of it to free up space on C: ?

Sometimes when I try to open a link in a Fastmail email I get a new screen saying Fastmail has stopped working. Usually if I go to app.fastmail.com it works.

Looks like your browser is blocking the process.