Wow, I had no idea that there were developers who aren’t aware of Jesse’s awesome bookmarklets, especially surprising that Eric, who works at Netscape didn’t. (see bugzilla)
Anyway, thought I’d give it a little googlejuice, for the good of developers everywhere. It’s step 3 on my intermediate web development check list (step 1 is installing Mozilla).
Related: gemal.dk: Using Mozilla in testing and debugging web sites, Brad’s Mozilla resource page, List of Mozilla links from September 2002, old post from January 2002)