I see that you've invented Greasemonkey. Unfortunately, it has already been around for the last 8 years. What's more, Chrome actually has native support for Greasemonkey scripts – no plugin needed.<p><a href="http://blog.chromium.org/2010/02/40000-more-extensions.html" rel="nofollow">http://blog.chromium.org/2010/02/40000-more-extensions.html</a><p>EDIT: My comment has been misunderstood by some, so let me try to be clearer: I like your plugin, I just wanted to let you know a plugin with similar functionality has been around for a long time, in case you were planning on spending a lot of time on it.