I made a firefox extensions and I want to know if you have any comments of it. It will not do anything until you add toolbar icons using customize menu or you go to extensions, options and set some of the preferences for this extension. You can download it at:
http://zzo38computer.cjb.net/mozilla/zzo38_extension.xpiRename to .ZIP and open it to reveal the source-code. The toolbar icons isn't very good, if you have any better icons you can post the new toolbar.css and icon files. Also any other ideas or comments of this extension you can post as well.
Another good firefox extension that I didn't make is called GreaseMonkey. I did invent some GreaseMonkey scripts, though, including one to display ALT text of images on tooltips on Firefox.