along with the new twitter style changes, please welcome firefox 91 where you can no longer disable proton and are forced to have the tabs feature waste much more screen space, can't wait to see how it looks like on my 1024x768 laptop
one of my favourites is how mozilla showcased a new color picker for firefox mobile back in 2013, finally letting us pick any value instead of being limited to a random preset selection that serves nobody. that functionality has yet to come, 8 years later. https://blog.mozilla.org/ux/2013/12/a-new-colour-picker-on-firefox-for-android/
this is what i mean about software development playing such a large part on hardware obsolescence. the hardware is fine, the screen is fine, i can use it fine today. but a new update forces a layout change that makes it more uncomfortable to use on the hardware that didn't change