I’ve been using firefox for a number of years now, and I keep discovering new ways to browse more efficently. I often accumulate all of the tabs with things I may be interested in looking at in the near future, but which don’t merit bookmarking. Just recently, I discovered that the browser history can be used to this end much more effectively. Say I’m looking for page with all the options for Apache’s mod_rewrite. I know that I was looking at it yesterday, but I’ve closed the tab. Ctrl-H to open the history sidebar, start typing “mod_rewrite” in the search field, and I find it. Approximate time, start to finish: 4 seconds.
The other trick I’ve been using recently is the shortcut key to get to the Google search box in the top right: Ctrl-K. Try it. Want to search for something on Google? Ctrl-K, type, enter. (If you know exactly where you want to go, Ctrl-L will take your cursor to the location bar.