Hello, I'm new here, and not sure if this is in the right forum or not, but here goes!...

I'm looking for a program I can use with Firefox that would permanently change the CSS on any webpage if I commanded it to. Currently, the two most popular web addons for Firefox are Web Developer, and Firebug: these are both GREAT addons that allow all types of tampering, however, these programs do not allow me to permanently change a website's current CSS to my own original one. If anyone has any idea what I'm talking about please don't hesitate to respond.

Thanks for your time!
IN

The question is why do you want to do this? If you want all pages to use the same style you can use this link http://webdesign.about.com/od/css/ht...userfirefo.htm otherwise if you know enough about xml+css+javascript you could tinker with the extension and have it write and use settings. I don't know of any addons that save changes permamently though, as it's kind of pointless.

I want to change the CSS in reddit so that visited links stay blue instead of turning purple (the current setup hurts my eyes). The change is something like:

links:visited {color: #23423} ----> links:visited {color: blue}

The simpliest:
go into FF options -> content -> Fonts & colors -> colors -> uncheck "allow web pages to specify their colors" on the links section

The complicated but that allows to filter the web site where you want it:
Use something like greasemonkey [ https://addons.mozilla.org/en-US/firefox/addon/748 ], which allow you to run a local javascript in any page.
You can use it to include a css stylesheet of yours, or to directly modify any link in the page.

http://diveintogreasemonkey.org/patterns/add-css.html