This was a Mozilla decision. In general, I don't undo these
sorts of changes unless they're critical to the function of the
browser. Mozilla's theory is that if you were using Google, then it
would assume you had it "by default" and switch you to Yahoo! once,
and then if you moved back no other changes would be made. I'm not
defending this policy, but since we're based on their code and this
is a big deal to their bottom line, I'm not reversing it unless
Yeah, sadly this seems to be their thing. FF 40 apparently introduced a few other nuisances according to my friends who use it-- nothing that can't be removed with a simple right-click. that said, I'm also seemingly having more CPU usage under 38 than 31 which I was using previously, with the 7450 compile. rolling back to 31 made a huge amount of difference. this is on a PBG4 Alu HR 1.67 15-incher with 2GB of RAM. I'm seeing a lot of other people that seem to also be showing similar things in another problem thread on the tenderapp website for this.
I can give information on extensions installed and see if that's it, but for now, I'm gonna stick with 31 since the G4 doesn't get used that much enough to specifically *need* the latest version. everything I ever need to access via the web still works absolutely fine under 31. sort of reminds me when Waterfox had an issue with MS OneDrive under 32.0.4 but didn't under 32.0.3. so, until stuff was fixed later on, I didn't have a reason to switch, since everything still worked fine with the older version.
Whatever the cause is, it has to be something that changed between 31 and 38... and if that's the case, it's probably too big of a jump to be able to find it off the bat.