"Show sidebars" width auto-reset
I posted it on bugzilla too, so any kind of help is appreciated, I am tired of resizing it multiples times a day.
Steps to reproduce--> Add 'Show sidebars' to the toolbar using toolbar customization. After opening the sidebar & then bookmark panel in it, I decreased sidebar's width to the minimum by dragging the border.
Actual results--> After sometimes[opening and closing firefox a few times], sidebar's width resized itself to the default [here I didn't change anything, 'bookmark panel' remain selected]
Expected results--> Width of 'Bookmark panel'[or any other panel] in the sidebar should have remained of the width it was resized manually.
Moambuepyre
Opaite Mbohovái (3)
Reason Found=> If Firefox is resized [ not maximized ] even once, it will surely resize the 'Sidebar' width even if Firefox is restored to fully maximize state before closing, i.e. 'sidebar' resizing always happens in next relaunch and doesn't affect current session. Why Firefox doesn't remember 'sidebar' width from previous session with maximized state (which was) just before closing (browser exit) ?
Moambuepyre
Are you using "Clear history when Firefox closes" to clear the browsing history?
In Firefox 127 and newer is the sidebar state stored in sessionstore.jsonlz4 as part of session data and is no longer stored in xulstore.json. If you clear the browsing history when you close Firefox, then the sidebar state is lost.