Firefox Community Forum

1. 1. Steps to reproduce

Open several tabs, in settings, check «ouvrir les fenêtres et onglets précédents», quit firefox.

1. 1. 1. Expected behavior

On startup, Firefox should reopen with the same tabs before shutdown.

1. 1. 1. Actual behavior

Firefox opens with one empty tab. Forcing me to got to «history -> recently closed windows -> restore» everytime I quit Firefox or shutdown the mac.

1. 1. 1. Device & build information

• Device: MacOs Tahoe 26
• Build version: firefox 148.0.2
• First seen version: MacOs Sequoia

1. 1. 1. Notes

Fresh migration from Win 11 to Mac. tabs, passwords, bookmarks, plugins migrated from win to mac. Attachments:

I started using a tab group to organize my tabs and save it. I was able to open it from the overflow menu before but now there is no trace of it there. Surely there is a way to see the history of tab groups and recover it right...

The website wouldn't open for me, so I decided to restart Firefox, after which it closed all my tabs and tab groups. My settings are set to "keep tabs after closing the browser." This hasn't happened before.

I use tab groups to save work sessions so I can easily close and reopen them when I need them. I typically use the downward arrow to see all of my tab groups, however, when I opened my laptop today, there are only two tab groups there and no "show all" option. When I opened my laptop today, I did see that Firefox had been closed unexpectedly and the restore sessions option, which I used. The two tab groups I had open when I left my laptop opened again when I used restore sessions, but now those are the only two tab groups I seem to have. How can I get back all of my other tab groups?

I have the same issue as this person https://support.mozilla.org/kn/questions/1373153. I HAVE the "Open previous windows and tabs" option on, i also DON'T have the "Clear history and cookies when closing the window" nor "Clear history when Firefox closes" nor "Always use private browsing mode" on so the solution doesn't work for me. Firefox won't open previous tabs when i close the window. However upon restarting my PC i have noticed that when i start up Firefox, my previous tabs are opened. So it seems the action of closing the window is doing something to prevent Firefox from opening the previous tabs again.

dear sir/ mam:

like in safari, i had pinned the websites (as tabs) i visit regularly.

when i restarted the browser, all tabs were gone.

i have been using this feature in safari since a decade and no pinned tabs have been lost.

please guide.

I have an issue with grouped tabs but I know where the grouped tabs are, I click the arrow facing down and it doesn't show the grouped tabs that I had, I don't know if it's because I turned off my PC when firefox was still open but I do that most of the time, when I opened firefox it said that it couldn't restore previous session or something like that and next thing I notice is that all my grouped tabs are gone. Is there a way to get them back?

All of a sudden Firefox stopped reloading my previous tabs when I start Firefox (whether or not it is set to open automatically on start up). I have ensured the relevant boxes are ticked and I have even reinstalled Firefox altogether - and all to no avail.

I am using Firefox on a W11 64 bit desktop. I have used it for years and have never had this problem before.

I had about 15 pinned tabs - unloaded - that I was saving for a research project. I shut my PC down and when powered up for the next session - all the pinned tabs were gone. I never thought to record the tabs via screen shot or something.

Is this normal - what are the limits of pinned tabs ? Do they expire in a day ? When the PC powers down ? When Firefox updates ?

Exactly what are the limits or boundaries for pinned tabs ?