Firefox 4.0.1 hangs HARD on XP (cannot kill process)
Multiple times is recent weeks (since the Firefox 4.0.1 update), Firefox has hung on my XP laptop after time (no other obvious influence) and CANNOT be killed! I have had to reboot every time, since no XP process-kill approach works. Presumably, there is no dump from Firefox either, since it just utterly locks up, quietly, and no longer responds to anything.
In Tools->Options Advanced tab->Settings Firefox apparently defaults to
Use system proxy settings
and this causes all kinds of issues, including non-killable hangs, in a VPN/multi-network environment. Since I changed to
Auto-detect proxy settings for the network
several days ago, I have seen no problems. This is a welcome fix, since I otherwise really like Firefox, and was moving more and more to IE, which did not have the dead-connection and hang issues described above.
BTW, Firefox support, note that there are 71 people on this thread, 9 new this week. I am apparently not the only victim of this issue, which has been around for some time. (This is also not the only thread related to this, but the only response I can see is notes on how to kill a process that has already been described as unkillable by Taskmgr or anything short of reboot).
Anyway, seems like a serious issue to me, and the lack of response is unfortunate.
Sadly, the above fix only "mostly works" after several network changes this morning, including one VPN session, and a suspend or two, Firefox is once again is once again hung and cannot be killed. I will have to reboot.
Depending on how often this happens, I might have to reconsider Chrome. I can't really see using IE for everything, all the time. That this problem is common to both 3.6.xx and 4.0.x is not encouraging.