As a fervent long-time Firefox user I would add that currently there are lots of default settings of freshly installed Firefox that are (for me) utterly wrong.

As a fervent long-time Firefox user I would add that currently there are lots of default settings of freshly installed Firefox that are (for me) utterly wrong. And it feels like a sad trend. Last time I tried to use freshly installed Firefox it felt like a completely different browser than my Firefox with more than a decade old profile. Tabbing was wrong, URL bar behaviour was scary. All can be set back to (subjectively) sane state, what is good, but I really grieved poor folks who just decided to try this browser for the first time and were immediately "welcomed" by such disputable UX. And I don't mind dated UX of bookmarks manager, I even think that compared to other browsers it is the most usable one.