Sometimes Firefox likes to suddenly take 20% cpu and a huge chunk of memory, forcing me to restart it. No big deal, but annoying that things like that still happen. On my older PC(Pentium 4) it takes 100% cpu even with no tabs open. Makes it completely unusable, but on that computer Chrome runs so bad because it has no hardware acceleration, so it chugs along trying to render pages. Also I can't get adblock plus to work on Chrome. Have it installed but it doesn't do anything. Oh well.
My browser of choice is Firefox, but Firefox is also doing worse and worse every update. They also took the path of doing major updates monthly(from FF6 to 7, for example) even if the content added doesn't justify it. I hate that ****. Artificially boosting their version number because people think bigger numbers mean a better product. For shame, Mozilla.