Hi, thanks for the reply Misiak,
I know that browserd is the built in web browser, but what confuses me is that when I restart the n900, after, say 10 minutes, conky and (top in xterminal) shows that browserd is above 90% cpu% without even connecting to wifi or even opening any app. I shall do what you say for the addons. Thanks for your help though.

vi_ im not stupid, I have reflashed it several times, but still nothing.

What astonishes me though, I have a second n900, and it is older than this one, its overclocked and has a whole lot more apps on it but it doesnt have the same problem.