Don’t get me wrong, I like Firefox a lot, but needs polishing.
I like -impopular opinion- the Proton UI (aka rounded tabs), containers are great, but has some flaws:
- No PWA support
 - Bookmarks and history panels are unpractical (menus for both options are almost unusable)
 - A separate window for downloads, managing bookmarks? Really?
 - Pocket by default?
 
We need alternatives to Chromium, and Firefox is the “go to” option, but sometimes is disappointing to use it.


Which API are you missing on Firefox desktop?