In Firefox 144, I can open vertical tabs and use Sidebery, but Firefox sidebar remains open on the side. I can remove it by setting always-show and hide-sidebar in config, but it reappears every time I restart.
Is there a way to permanently disable it?


Thank you but it didn’t work.
Allow custom sheets true?
I wasn’t sure what the actual preference name was so the code I gave you wasn’t accurate. This is exactly what you need in the
user.jsfile:It didn’t seem to work the first time I restarted Firefox even though the value for
sidebar.visibilitywas changed correcty in about:config so I edited it back toalways-showand then right back tohide-sidebarand now the sidebar remains hidden on startupEdit: typo