Hi, I'm using Firefox for about 10 years. Last 2 years I'm experiencing huge performance problems (sometimes it freezes during browsing, closing tabs etc.). For this reason I was forced to migrate from Firefox to Google Chrome. But I'm not comfortable with Chrome, so I installed fresh copy of Firefox 49.0.2 x64 with only necessary addons: TabMix Plus, Download Status Bar, FlashGot and RoboForm Toolbar. There is only plugins installed by default and I have no more than 10 opened tabs and 50 synced tabs (closed). I have Windows 10 Build 14393 installed with the latest updates, i5-6300U CPU, 16Gb of DDR4 with SSD installed. Please check attached images. Please check screenshot links (for some reason I can't attach them here): https://www.dropbox.com/s/r3lwo00xicorsln/shot_161026_151052.jpg https://www.dropbox.com/s/22xth6co32vdyhv/shot_161026_143932.jpg https://www.dropbox.com/s/0abpl34qh5io120/shot_161026_144007.jpg https://www.dropbox.com/s/o61zo2mrhc4ev2v/shot_161026_143552.jpg