At first, Gooreplacer was created for redirecting Google Ajax/Api/Themes to other CDN to bypass Great Firewall since pages referring those are slow as molasses.
More features have been added since then, mainly:
- block/redirect URLs based on user-defined rules
- block/modify headers based on user-defined rules
- Test rules in sandbox
- i18n (English + 中文)
- Export/Import rules, sync between Firefox and Chrome
- A new UI built with ClojureScript + Reagent ❤️
Most users prefer gooreplacer than other similar extensions(HTTPS Everywhere/Redirector) for ease-of-use. Why not give it a try?
You can find more guides in Github README.