Improve killing resource-hogging tabs
This isn't strictly related to Hulu but using it as an example: Hulu has some bug right now where it will occasionally suddenly use a lot of CPU power and completely lock… (read more)
This isn't strictly related to Hulu but using it as an example: Hulu has some bug right now where it will occasionally suddenly use a lot of CPU power and completely lock up Firefox, and to some degree my whole system. If I manage to "close" the tab, it *appears* to close, but it's very clear that whatever Hulu is doing is still going on in the background. This time I was at least able to open the task manager and kill Firefox – which immediately alleviated the problem, and upon reopening Firefox, the Hulu tab was still there (indicating it never closed).
I don't know if this is possible, especially given I don't know what's causing the bug with Hulu, but it would be nice if Firefox was better able to handle a tab getting out of control like that.