Firefox users criticized the permanent ‘List All Tabs’ button introduced in version 131.0, leading Mozilla to make it removable.
The button, designed to manage hidden tabs and prevent add-ons from hiding them, received backlash for being unnecessary alongside Firefox View.
Mozilla responded with a fix in version 131.0.3, allowing users to remove the button through toolbar customization.
Literally just obsoleted my 2 week old CSS hack haha. Another useless GitHub project on my account. https://github.com/barelyelectric/firefox-csshacks
Hey, the best way to learn / practice is to build tools for yourself. Just think of it as Mozilla gave you a useful coding challenge before they came to their senses.