Same as nburgin. I was used to have many firefox windows with many tabs open but the longer the firefox is running the more CPU usage it consumes. Even after closing tabs / windows. Restart temporarily solves the problem - in my case I have to restart it once a day.
Using Firefox 17.0 on my Kubuntu 12.04 with KDE 4.9.3.
Same as nburgin. I was used to have many firefox windows with many tabs open but the longer the firefox is running the more CPU usage it consumes. Even after closing tabs / windows. Restart temporarily solves the problem - in my case I have to restart it once a day.
Using Firefox 17.0 on my Kubuntu 12.04 with KDE 4.9.3.