It's probably this bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1955112
It's a bug specifically on Wayland.
Try grabbing the tab and moving it and letting go, you don't have to move it's tab slot.
this post was submitted on 04 Jun 2025
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This one's super annoying, I'm glad the tab thing actually fixes it for a bit because I was completely killing my browser every time before I learned about that.
Hope this fix goes live soon
Grabbing the tab resets the bug from what I see. Thanks, that saves the trouble of losing a window's worth of tabs.
thank you mousey baby!!
Something I think is related is that after some time, I can't click the x on a tab to close it, but I can do middle click (L & R at the same time) to close a tab. When this happens, I also can't get into the address bar. Just started seeing this with the last update (currently on 139.0.1) snap version.
This fucking bug is not new, and not special to KDE. It’s because there’s missing documentation in a lib just above Wayland, so it only affects some apps that aren’t using a higher level toolkit, Firefox is in that box. The bug is literally 8 years old and would literally require one fucking line of code to fix, but the cunts over at freedesktop refuse to merge the changes. If I were at my main computer I’d send you the link and details.
One thing that sometimes fixes it, is the menu key next to the spacebar.
I have the same problem on 139.0.1, restarting the whole browser session will fix it but it is very annoying.
Can't say I've tried to close with the X, I always use middle-click, but I'll see if that tracks.
I've had that happen also, I was trying to close some tabs but they wouldn't close, opening a new window and moving the tabs over made everything work again
I'm on bazzite
Ive definitely had it too. Its fixed my just clicking and dragging the tab over, but it's still pretty frustrating.
Not really a fix, but does pressing F6 work?
F6 does get you into the address bar and you can type, but only on that tab and if you take the focus off, it's still glitched. It doesn't reset the bug like grabbing the tab and moving it will for the entire window. But still sorta helps.
Interesting. Hope it's resolved soon!
I'll give that a try on the next happening.
im still over here fucked up about the bookmarks toolbar
If this happens after closing a tab: Search the direct tab to the left of the previously closed one and open it.
I noticed similar behaviour when the tab to the left isn't loaded at closing time. It also affects all other websites being unresponsive.
I’m on bazzite and it seems to be fine, but doesn’t mean you’re hallucinating!
I'm on Arch and I'm hallucinating, btw