1968583 - Pinned tabs disappeared

Status: NEW

(Firefox :: Session Restore, defect)

Description

[[:vitosartori]]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0

Steps to reproduce:

Applied the last Nightly update

Actual results:

All pinned tabs disappeared after the update

Expected results:

Tabs should consistently be kept across updates and restarts. I'm not sure if this was caused by the update itself, but I noticed they disappeared right after the last update was applied (now running 140.0a1 (2025-05-26) (aarch64))

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

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

Comment 2

[Mike Conley (:mconley) (:⚙️)]

Sorry BugBot, wrong component.

Comment 3

[DJ (:dwalker)]

Hey there,

Could you attach your session store logs? If they exist - should be in a a sessionstore-logs directory in your profile directory (the location is linked in the about:support page). To get more verbose logging, set browser.sessionstore.log.appender.file.logOnSuccess to true in about:config, and browser.sessionstore.loglevel to Debug (this is the default in Nightly).

Comment 4

[[:vitosartori]]

Attachment: sessionstore-logs.tar.gz

Adding contents from sessionstore-logs

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:dwalker, could you have a look please?

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