Having grown weary of forking cloud-to-butt whenever I needed to get my s/from/to/g fix on, I just made an extension that lets you define rules in the options page.
- json loader/dumper for rulesharing
- regex match
- write arbitrary JS replacement functions; comes preloaded with an example cm-to-inch converter
- some way to set precedence for rules which are substrings of each other
- download font-awesome instead of importing from CDN plz