Redirect Curseforge mod pages to Modrinth and show Modrinth notifications
When looking at Minecraft mods on curseforge.com, Modrinthify automatically searches modrinth.com for the mod and shows you a redirect button if it finds it. If you click on that button you will be taken to the mod's Modrinth project page
It also does the same on spigotmc.org
The extension also show modrinth notifications in the browser toolbar