[karthikksv]

Does Greasemonkey make it easy to modify styles as well? This is simple if you can insert arbitrary JS, but it'll be annoying if you need to write JS to insert CSS for every site you want to edit. I just wanted a simple way to edit CSS without having to go to my editor or a different web page, especially for sites that I visit often. Perhaps the tool I was looking for did already exist.

[_ZeD_]

Greasemonkey (+ userscript) and your plug in attack two different parts of the problems.

While "my style" it's great for "live" css editing, greasemonkey+userscript have a community and shines for the "share your modification" thing.

May I suggest you to get in touch with gm/us developers? It would be awesome to be able to write a custom css for a site and share it!

[randomchars]

There's an extension called stylish, and a corresponding website [0].

[0]: http://userstyles.org/