[marttt]

> Before Firefox 3.6 (probably that version), Firefox was my most used browser, but after that version, Firefox started getting slower and more buggy.

Haha, I remember that same feeling, with 3.6 being "peak" Firefox back in the day. My 3.6 was heavily hand-tailored to my needs via about:config etc. Just some dedicated end-user here, but I did know it very well. Version 4 felt considerably worse on a WinXP system, some essential-to-me add-ons broke, etc. I remember feeling really - as in, really - frustrated when I finally had to make the switch.

Apparently, 3.6 is the longest supported Firefox version ever, 27 months: https://en.wikipedia.org/wiki/Firefox_3.6#End_of_life

[cosmic_cheese]

I seem to recall similarly about things starting to go downhill after 4.x or so. Performance, optimization, and stability seemed to take a back seat to flashier things like new features and UI themes. It stopped being the lean, mean minimal browser that it’d become famous as and turned into something a lot more unremarkable (albeit, more flexible). They wouldn’t seriously prioritize performance again until many years later with Quantum.

Looking at it that way, it’s no mystery how it lost ground to Chrome (though Google’s marketing muscle is also largely responsible). Mozilla just tossed Firefox’s claim to fame out the window and expected things to work out somehow, which is a bit like a restaurant that’d become popular for its award winning burgers deciding to pivot to the same dry turkey sandwiches you can get at most of the restaurants in town. Yeah, you’re gonna lose customers.

[Mr_Minderbinder]

I had known that 3.6 was released when Firefox was at its absolute peak in terms of market share but I am somewhat surprised (not really) that this seems to also correspond with its peak in overall quality for some people. This is not the case with Internet Explorer.