User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0

Steps to reproduce:

One thing I noticed in recent years is FireFox stops loading sites but only then if you open a new tab will it say you're forced to restart because of an upgrade. Mainly I think this is very bad because it sometimes interrupts important activities/work, rather than the historically normal (and better) practice of letting the user decide if/when to upgrade and if/when to restart.

Actual results:

OS upgraded FireFox. Stopped being able to load sites and got zero notification until opening a new tab. Sometimes needed to continue doing things before restarting.

Expected results:

Let users decide if/when to restart, because they may be doing things that shouldn't be interrupted. Make certain they always get the notification without having to open a new tab.

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Hi :mossop, I am wondering if "Toolkit:: Startup and Profile System" a better fit for this behavior change ticket. If not, do you have ideas for the right component? Thank you.

Probably a dupe of bug 1480452

Since only my OS updates FireFox (FireFox can't itself) this isn't duplicate of bug 1480452.
        This typically happens after FireFox finished starting (even hours later) so I don't think has anything to do with startup, and I wouldn't really say this has to do with profiles or most/any components, as I described two related things FireFox does or doesn't and what it should (immediately notify users there's been an upgrade without waiting for a new tab, and don't say/force 'restart to continue using FireFox' rather than let users continue using).
        If you're still following the horrible fad of cloning Chrome, note when I upgrade my Chrome package I can still use chrome as long as I want... it never forces restart: that's entirely up to me, and just uses the new version after I decide to exit. As such, I can use Chrome for certain work/jobs/positions but FireFox isn't 'production-ready' for work/jobs/positions you can't have browsing interrupted.

Basically the same issue as bug 1705217

This should be mitigated by using our deb package