1964594 - Firefox window size is locked at launch (version 115.23esr)

Status: RESOLVED INVALID

(Core :: Widget: Win32, defect)

Description

[Jeankree]

Attachment: 2025-05-06 09_27_04-Firefox window at opening.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/115.0

Steps to reproduce:

I launch Firefox (just upgraded 115.23esr) for going on the web.

Actual results:

Firefox launch always in a middle size window, no matter how it was when I exit from last session. In my case, size is always 1012x1039 px. My screen is 1920x1080 px.

Expected results:

Firefox should launch with last windows size and position.

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Win32' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Jeankree]

I downgraded to version 115.22 and now firefox window positioning works fine again.
(btw I lost ALL my configuration, included history and bookmarks, because I HAD TO uninstall 115.23 to be able to install 115.22)

Comment 3

[Jeankree]

Because of having cancelled all my configuration, Firefox updated again by itself from 115.22 to 115.23 (I hate automatic updates)...
BUT... it now works fine!
Request can be canceled.