But then they remove great features like Tab Groups because it's "too expensive to maintain them". I would actually pay them to maintain this feature indefinitely, I'm sure others will as well.
[0] https://bugzilla.mozilla.org/show_bug.cgi?id=1222550
[1] https://github.com/Quicksaver/Tab-Groups
[1] https://addons.mozilla.org/en-US/firefox/addon/tab-groups/
If you are not paying for it, you are the prod... oops, wrong browser vendor! /s
Seriously though, I know there are trade-offs to consider, but some of the technical decisions being made for Firefox make me wonder what they were thinking (case in point: Pocket). Too bad most Firefox forks tend to wither over time.