Does Firefox actually work and not slow down after about an hour of use for anyone else? I find that it starts to eat up too much memory and CPU and the process eventually starts to hang even navigating between tabs after a while, which is a pretty minimal but trivial action I think. Doesn't do a whole lot of good these security updates if it takes you forever to open up a new tab and google something haha. I used to use firefox a lot too, but they really need to work on performance. Everything I've kept up to date, and I have even disabled the majority of my addons -- no difference in minimizing poor performance noticed.