Recently active topics in GameLayers tagged with problem

Why don't any missions work for me? There is only one (1) page and and as soon as it comes up it states "complete mission!" thus there is always a problem when i click it and i am unable to complete any mission whatsoever. This brings me back to the main "Missions" page whereupon, the process starts over again.

Is there a trick to leaving a create on a site? I've clicked in the toolbar and nothing has happened.

Since I installed PMOG Firefox has frequently frozen, pushing CPU usage up to 100% and memory usage to around 600,000k. It looks to be when there is a pop-up window on a site (happened on Amazon when viewing a larger image of a book cover).
Any ideas? I'd rather not uninstall PMOG.