When I open many tabs on browser, UI completely freezes. In some cases I press Ctrl+Alt+F1 twenty or thirty times, after 15 minutes UI unfreeze, I switch to text terminal, kill browser and after that operating systems work fine. In other cases UI freezes completely, I'm not able to switch to text terminal and I have to reset my computer.I'm experiencing difficulties in one of these browsers:  Firefox with flash plugin enabled (firefox without flash works fine) Google Chrome (it doesn't matter if flash is enabled or disabled inChrome)When computer freezes I don't see any strange errors in syslog.Chrome, Firefox and Flash work perfectly on my computer in Windows 7. I have no freezing issues in Windows.My configuration is:Now I use Linux Mint 17.1 64-bit.  CPU Intel Core i5-4440 (with 4 cores)  8GB RAM  Samsung 840 EVO 250 GB SSD  I have 2 videos: Intel HD Graphics 4600 and GeForce GT610.  Swap is disabled  CPU cooling works perfectly  Memtest show no errors  In the past I had same issue with Google Chrome on different computer:Back then I used:  Scientific Linux 6.3 64-bit  Intel Pentium E5500  4 GB RAM  On that configuration Google Chrome was also freezing X server. If I remember correctly, flash in firefox didn't freeze UI on my old PC.How can protect myself from UI freezing? Should I change some linux config file to avoid freezing? What is the reason of freezing?
UI freezes when I open many tabs in browser
linux mint;firefox;chrome;freeze;adobe flash