I wrote one (a Webextension) for Firefox for my private use: <https://github.com/akavel/bookwin>
- Chrome Extensions with Nim, who would have thought? Niminem
- Chrome Extensions with Nim, who would have thought? gemath
- Chrome Extensions with Nim, who would have thought... Araq
- Chrome Extensions with Nim, who would have tho... Niminem
- Chrome Extensions with Nim, who would have... juancarlospaco
- Chrome Extensions with Nim, who would... juancarlospaco
- Chrome Extensions with Nim, who w... akavel
- Chrome Extensions with Nim, w... Niminem
