Widerbug: Widescreen Firebug | Command-Tab
After a few trivial changes to Firebug, I’ve modified it to open on the right side of the browser as a sidebar. With the stock plugin, you can achieve a similar layout by detaching Firebug from the current tab and moving its window in the same position, but this has a generally unwelcome side effect: the separate window doesn’t update when you switch tabs. With Widerbug, you can open the Firebug sidebar, and it will keep up with you as you switch tabs and maintain its width.
