'Artem S. Tashkinov writes:

Over the past ten years, Firefox market share has decreased substantially and the web browser has lost its appeal and coolness. Seeing that, someone at Mozilla probably decided that the best way to entice people back is by changing its UI, thus Firefox has already seen quite a huge number of changes despite other major web browsers staying relatively the same in terms of their visuals; i.e. Google Chrome and Apple Safari look almost the same as they did a decade ago. The most substantial redesign, which is being prepared for the next release, called Proton, promises to drive most power users away because it's broken on a number of levels and makes using the browser a very unpleasant experience.

So, what has changed: - The compact density option for the address bar is now gone, and not only that, the title bar is now a lot taller than before. Overall, vertically, the title bar and address bar now take almost a dozen pixels more than previous Firefox releases, which steals very precious vertical space. - The floating tabs. The active tab is now totally disconnected from the active web page and it looks out of place. - The inactive tabs now completely lack a delimiter between them; and in the case of websites lacking a favicon, all inactive tabs look like one, which makes understanding what's open and what to click very difficult and time consuming. - Mozilla has removed icons from menus, which makes navigating them slower and more difficult. Human beings can easily recognize and memorize icons, and now instead you have to read 20 menu items and try to understand what you actually need to click. Just to illustrate it, check how Firefox 88 looks and what is up and coming.

It surely looks like whatever UX studies Mozilla has done were either not run properly, or the data being collected was not properly understood. Mozilla has disabled feedback for Firefox, they've made it abundantly clear that you cannot leave comments in their Bugzilla, and considering they want to deprecate userChrome.css, it makes it impossible to restore the semblance of a good web browser experience. The Slashdot crowd loves free and open-source web browsers, so the question is, how can we make the company stop maiming and destroying their most important product?'

-- source: https://news.slashdot.org/story/21/04/22/2021218

Cheers, Peter