I'm currently running the experimental branch of Firefox on Linux and IMO things have improved a lot since then. I had similar issues, especially with tabs that

I'm currently running the experimental branch of Firefox on Linux and IMO things have improved a lot since then. I had similar issues, especially with tabs that crashes / get stuck when watching 3 or 4 twitch streams. With the latest releases almost all has gone away (cant remember any crashed tabs in the last few months).