Firefox Community Forum

I have firefox set as the default browser on my PC : windows 10, dell pc. but edge often comes up when I click on a link in an email or website [even searched in firefox] how do I turnoff Edge's override?

hello, how to display only the preferences that I have personally modified, without those that an external program has modified: there are too many of them, and this button loses much of its usefulness.

I tried to do this: [quote]Locate and delete the file prefs.js (or rename it, for example, to prefs.jsOLD, to keep the old file as a backup). If you find more than one, a prefs.js.moztmp file or a user.js file,

delete (or rename) these as well. (/quote]

but it doesn't work because there are still “modified preferences” coming from who knows where.

Is there a setting that prevents Firefox from closing immediately when the X in the upper right corner is clicked? Thinking a question "Are you sure that you want to close Firefox" should pop up. Recently I've closed Firefox accidentally and lost all of my open tabs (I don't keep history).

I run Linux Debian 12 (bookworm), and there seems to be no way to disable Firefox from automatically starting up after system boot. I've searched through settings, read countless articles on the internet, looked at system auto-startup applications, but wasn't able to find anything that worked. I even looked in about:config, but couldn't find anything. Firefox isn't automatically started by my system and there is no parameter that disables it. I also didn't click through any choices about autostart when I first opened Firefox.

I'm on v137 on Windows 10.

I cannot play my Unifi camera videos because they require HEVC. I thought v134 and higher had HEVC support?

There were some mentions of needing to get the HEVC codec from the Windows Store, but I could also not locate that from Microsoft either.

Under about:support, it says HEVC is Unsupported. What am I missing?

I was advised by Sainsburys to change my default browser to Chrome due to a problem with their website. that did not solve the problem and I now can't restore firefox . Have I been blocked from firefox for moving away if not please help me return to firefox.?

Hello

Can you give me the internet adress from german mozilla, that I remain on german mozilla, without directed back again to us-mozilla?

Thank you gregor neusch

Every night Firefox closes all then it closes erasing all tabs!! In the moring I have to start it, then I have reopen all the tabs I need do my work. What setting is to stop this from happening?

Every morning when I go online, a firefox icon appears on my desktop. I did not give anyone permission to put an icon on my desktop. How can I stop this from happening?

Why does my context menu show everything in the world? How can I change this back? did this come with an update? most of these options don't work, even the simple "save image as" function