topic Recently Closed Tabs are not cleared in Discussions

Recently Closed Tabs are not cleared

Anonymous — Fri, 27 Feb 2026 02:00:53 GMT

Summary
Recently Closed Tabs are not cleared when quitting Firefox with “Delete browsing data on quit” enabled (all options selected except Site permissions)

Product
Mozilla Firefox

Version
148.0 (Release)
Build ID: 20260216153405
Multiprocess Windows: 2/2
Fission Windows: 2/2 (Enabled by default)

Platform
Android 15

Description
When quitting Firefox via the “Quit Firefox” menu option, Recently Closed Tabs remain available in browsing history, even though “Delete browsing data on quit” is enabled and all data types are selected (except Site permissions).
The browser clears the regular browsing history, but the Recently Closed Tabs list is not cleared.

Steps to Reproduce
1. Open Firefox.
2. Open any website.
3. Close the tab.
4. Open the address bar menu and tap “Quit Firefox”.

Expected Result
All browsing data should be deleted on quit, including Recently Closed Tabs.

Actual Result
Regular browsing history is deleted, but Recently Closed Tabs remain accessible.

Regression
The issue started after updating to Firefox 148.0.
It did not occur in the previous version (147.x).

Additional Notes

“Delete browsing data on quit” is enabled.
All options are selected except “Site permissions”.
The issue is reproducible consistently.

Re: Recently Closed Tabs are not cleared

lez — Fri, 27 Feb 2026 22:06:41 GMT

Bump. Same bug is troubling me on both my android phone/tablet after v148 update. I've turned on remote improvements too. Would be interesting to see if they resolve it via a remote hotfix.

Re: Recently Closed Tabs are not cleared

Anonymous — Wed, 04 Mar 2026 01:53:42 GMT

Is there any way to bring this bug to Mozilla's attention? This is my first time doing this, and I'm confused by how many unnecessary steps are required to do something like a bug report!

Re: Recently Closed Tabs are not cleared

lez — Wed, 04 Mar 2026 05:12:30 GMT

try reporting this bug here

https://bugzilla.mozilla.org/describecomponents.cgi?product=Firefox%20for%20Android

Re: Recently Closed Tabs are not cleared

Giangi — Fri, 20 Mar 2026 19:56:51 GMT

Same for me!

Re: Recently Closed Tabs are not cleared

Giangi — Wed, 25 Mar 2026 08:06:11 GMT

I opened the bug referencing your post

bug 2026108