Tabs missed and restoring back causes crash.

[amraei]

Lately, Sometimes when I close Firefox and open it again, I see that all my groups are empty and there are no tabs in them.
When I try to restore the backup, Firefox crashes.

It used to happen that the groups were empty, but at least the backup could be restored.

• Ubuntu 24.04.1
• Firefox 132.0 (64-bit), snap
• Simple Tab Groups version: 5.2

[glciampaglia]

Happened to me as well.

• Pop! OS 22.04 LTS
• Firefox 132.0 (64 bit), flatpak
• Simple Tabs Group version: 5.2

[mihalious]

I had same problem on Firefox 132.0.1, tabs gone and then Firefox crash when trying to restore from backup.

Update to 132.0.2 seems to fix the issue. Backup works without crashing and tabs are not disappearing again

• Arch Linux
• Firefox 132.0.2
• Simple Tabs Group version: 5.2

[ApolloBrazil]

Same here. Updating to FF 132.0.2 itself didn't fix it for me, but changing browser.tabs.closeWindowWithLastTab to false in about:config seems to have fixed the issue.
Tabs are no longer disappearing for me.

• Zorin OS 17.2 Core
• Firefox 132.0.2
• Simple Tabs Group version: 5.2

[amraei]

Same here. Updating to FF 132.0.2 itself didn't fix it for me, but changing browser.tabs.closeWindowWithLastTab to false in about:config seems to have fixed the issue. Tabs are no longer disappearing for me.

* Zorin OS 17.2 Core

* Firefox 132.0.2

* Simple Tabs Group version: 5.2

I confirm this also worked for me and backup restored successfully.

[holocronweaver]

Re-enabling browser.tabs.closeWindowWithLastTab after restoring tabs on FF 132.0.2 had no ill effect. Not sure if setting it false was even needed to restore tabs, but doesn't seem important after the fact.

[treehstn]

My FF is updated to 133.0 and that's when it started being an issue for me. Can't seem to find where browser.tabs.closeWindowWithLastTab is located to try changing that.

[holocronweaver]

@treehstn Did you check in about:config? https://support.mozilla.org/en-US/kb/about-config-editor-firefox

[treehstn]

@treehstn Did you check in about:config? https://support.mozilla.org/en-US/kb/about-config-editor-firefox

Yes... no effect.

[Darxide23]

I just did a format/reinstall of Windows. Before I did it, though, I made a manual backup of STG. After the reinstall, I tried to restore the manual STG backup, but it will create the tab groups and then start to import the tabs, but it will eventually crash FireFox. When I restart FireFox, only the groups are there. None of the tabs are open anymore. However, if I restore an automatic backup, it's fine. Problem is, my latest automatic backup is 10 days old.

[elehna]

I had the same issue and discovered some pattern:

• The tabs only disappeared after closing the last tab of a group.
• If restoring the backup after reopening Firefox, it would crash unless I had navigated to some website before attempting to restore the backup (so not just having a blank tab open). When I first opened some random website, the backup restoration worked fine.
• The bug of closing/deleting all tabs after closing the last tab of a group only happened if I had other add-ons enabled. When disabling all other add-ons, STG worked fine. However, I did not find that it was one add-on particular that caused the bug - really any other add-on caused it for me.
• The bug seemed to first appear after Firefox Update 132.0.1
• Setting browser.tabs.closeWindowWithLastTab to false does indeed fix this issue. Setting it back to true recreates it.

So to sum up, a temporary solution to this bug is:

• After crash/losing all your tabs, reopen Firefox and open a random website.
• Go to STG Settings > Backup your Simple Tab Groups > Restore backup (Click Open backup folder above to locate it)
• Go to about:config and set browser.tabs.closeWindowWithLastTab.

-> Backup should be restored and bug should not appear anymore.

[VictoriousRaptor]

I just did a format/reinstall of Windows. Before I did it, though, I made a manual backup of STG. After the reinstall, I tried to restore the manual STG backup, but it will create the tab groups and then start to import the tabs, but it will eventually crash FireFox. When I restart FireFox, only the groups are there. None of the tabs are open anymore. However, if I restore an automatic backup, it's fine. Problem is, my latest automatic backup is 10 days old.

This might help. #1214 (comment)