Firefox Unresponsive Script
After the first few thousand times you get this warning it starts to get old. Real Old.
I always thought it was a badly written site like OnTime or just because I can at times have 20 tabs open in FF3 testing different versions of the Silverlight.net site all running loads of scripts and silverlight.
But today I'd had enough. I googled it, which is what I should have done a long time ago. You'll find a lot of people babbling about Firebug and other add-ins, but it's a bug in Firefox that's the issue.
Jaime explains it perfectly here.
Although Jaime is trying to explain how site developers can help, I really just want my FF3 to start behaving. The nugget is right at the bottom:
Firefox controls its time out based on the dom.max_script_run_time setting, which you can tweak via the about://config moniker; the default timeout in most recent versions is 10 seconds.
Actually, you need to type about:config into FF3 to see this config (I had no idea this existed).
I then changed both dom.max_script_run_time and the one above it (chrome something) to 60 seconds. Hopefully that will fix it once and for all. Fingers crossed.