[egorpv]

> Unfortunately my css seems to break with every other Firefox release. It almost feels like it's being done intentionally. I recall how after one of the updates the entire contents of my custom userchrome file was automatically bracketed with css equivalent of `if false then`. It could simply be fixed by setting read-only attribute for the file but after some time they started randomly renaming css features without any obvious reason. It's like they are trying to make you to give up on customization and force to use the crappy default ui.