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3 weeks ago I set up my work profile, week ago I also added my personal profile. I Installed the addons I needed, set different themes for each profile. Then I was logged in into my work FF profile. Now I installed the latest update (140.0.2). Opened the neutral window, didn't ask to recover previously opened windows, didn't ask to log in into the previously open profile. I logged into my work profile. And most of addons are gone, my opened tabs gone. 1password, react developer tool, Grammarly - stayed. The theme is from my personal profile. Addons Web developer, axe, JSONVue, PixelZoomer, PrinterLogic, VisBug, Tabliss (with lots of configuration in it!) - gone. In the history - items from my second profile. I'm not payed at my work to spend few hours each FF update to re-setup my addons (that I need for work - I'm a web developer) and their configs. Good that I stored the Tabliss config, but whot if I wouldn't? - I expected this is also stored in my profile.

So I was looking at Event Viewer and I have noticed that Firefox Default Browser Agent shows error with EventID: 5, aKa Access Denied.

I tried to google a bit, but couldnt find anything useful, or at least for me.

Then I went to about:config in FF and I have noticed that even if I didnt personally made any edits, when I clicked show only modified preferences, it shows A LOT.

So it makes me to wonder what exactly is this error and why my config have so many modified preferences, even if I didnt modify any >.>

Hi Guys, I have just installed Linux Mint 22.1 on a laptop and I am using Thunderbird for Linux Mint as my email program. The version of Thunderbird I have is 128.11.1esr(64bit). I cannot update Thunderbird to the latest version because it says "Updates disabled by your system administrator" How do I overcome this problem? Thank you.

Recently I bought a Mac Mini and it won't allow me you sign in with Mozilla products (primarily Firefox). It defaults be to Safari. How do I get around their Safari requirement and install Firefox?

I have Sequoia 15.5 on a 2021 MacBook Pro and have always used FF as my browser. Now, I can't get it to do much more than open. Nothing new happened that I know about, except updates to "Malwarebytes" I have some computer knowledge but not a lot. TIA.

This behavior is beyond annoying. On the desktop version, it will install the update before the browser opens. It should work exactly the same way on all versions. Please get this fixed. I am very tired of being in the middle of browsing a couple of web pages, then the browser decides to close and update without warning.