Places Google search results into two columns, making use of wasted space on large monitors.

Displays toolbar with shortcuts to presentation, guestbook and gallery (edit the code for diary and friends as well) when hovering over a Helgon.net userlink.

Load all pictures from a thumbnail gallery at once and navigate them with arrow keys or mouse. Images may be zoomed with 'z' and 'f', or dropped from the sequence with delete.

Enlarges actor pictures in IMDB cast lists when you hover over that table row.

Removes the "Facebook | " prefix from Facebook titles, so you better can see which page is which in the browser tab bar.

Logs you in automatically to Trac: sends you to the log-in page and submits the log-in form if Firefox has prepopulated it. Rationale: Tracs easily forget your session, which gets annoying.

Displays a preview of images within each LJ-cut in post lists on LiveJournal.

Expands nested Live discussion threads in place, on LiveJournal.