Comment Semi-OT: OLPC, Firefox and memory (Score 1) 434
If I am not mistaken the OLPC project had to double the amount of RAM to get Firefox to run properly on the system. It looks like Firefox could indeed benefit from losing a bit of excess fat.
As for this story, I doubt that bookmarks, history and those kinds of features are the ones making Firefox run slow. It probably has more to do with the architecture itself.