Yesterday, however, Mozilla rolled out Firefox 23 – with a horrible new logo, without contrast and which looks blurry at small size. But mainly, to my dismay, right after upgrade, everything became slower. It felt like last year’s versions, with a sluggish performance, and essentially a pain to use. On Firebug, this is felt very strongly.
I forgot to backup my profile, but luckily the profile structure was not modified, and I was able to downgrade, download Firefox 22 again and removing this horrible Firefox 23, in the hope that they can fix it on the next version.
Update, Sep. 19:
I’ve just tested Firefox 24, and it seems to be even slower than 23. So, I’m still keeping Firefox 22.
Update, Nov. 7:
Apparently the slowness is fixed on Firefox 25, which I’m testing right now. Finally.