Just my 2 Cents

Firefox runs too slow for me too. Opera runs a LOT better. I don't really see it as an issue on connectivity speed though ... Not since I changed my WIFI Power Management settings to "OFF". That doesn't really help with your bookmarking issue but you could try the WIFI Power Management setting.

Off-Topic, Kind of:

I saw a couple of posts in here about people wanting optimized versions of software for Maemo. I'm curious (and new to the N900), is there a site where people can request software, patches, etc...? I'm a developer and wouldn't mind helping with little things in my spare time. But it's hard to keep track of them all in the forums.