Now, if only they'd fix the AJAX issue, I'd be happy (Firefox pauses while an AJAX update is taking place, even in a different tab).
Personally, I'm looking forward to Firefox 26...
You'll only have to wait a few days, then!
Bollocks! Everytime I upgrade firefox it just gets slower and slower and just more bloated! I don't see ANY new features but it just seems to take longer to load up!
I agree, but after upgrading I did notice a real speed boost of the last versions.
Try disabling the add ons. If it's faster, one of them is slowing it down.
I concur after trying Sunspider
Ubuntu 12.10 64bit, KDE 4.9, 4GB ram, Core 2 Duo 2.4Ghz
FF 17 - 293ms
FF 18 - 323ms
So based on the mighty evidence of one sample, I say that FF 18 is 10% slower and a regression.
I believe this comparison to be fair as the same add-ons were enabled in both runs.
Did a run in a Windows VM on a different PC (I had upgraded the host from FF 17 to FF 18 already). Host is almost the same as above, save it runs Windows 7 and has a 3.1GHz Core 2 Duo
FF 17 - 263ms
FF 18 - 312ms (18% slower)
actually that was true up to about version 8 or so but it seems to be getting better now.
Still had - haven't checked this release - some stability issues that meant it went guru meditation occasionally.
I haven't bothered to update FF since V4, due to needed plugins... when they make it 'out of the box' as fully featured as Opera, BUT with the full FF functionality, I may think about it...
You know why this is......
...no one ever bothers to do any real testing anymore.
Why bother when version 19 will be out in a month promising it will be better.........
Rinse and repeat.
Having left it running...
...with a few tabs open overnight and come back in to find it consuming over 900MB and choking when it attempted a page refresh, I'm less than thrilled. Maybe it's just my machine, though.