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There's a migration guide here: https://extensionworkshop.com/documentation/develop/manifest-v3-migration-guide/ https://extensionworkshop.com/documentation/dev

by tyingq 4y ago

There's a migration guide here: https://extensionworkshop.com/documentation/develop/manifest-v3-migration-guide/ https://extensionworkshop.com/documentation/develop/manifest... Since they aren't taking away the onBeforeRequest() functionality, I don't see a good reason why greasemonkey can't be ported over.

anvic 4y ago
Under "Scripting API" it says "the code parameter is removed so that arbitrary strings can no longer be executed [...] you need to move any arbitrary strings executed as scripts to files". I don't see how something like greasemonkey can continue existing given that limitation.
- tyingq 4y ago
  Ah, yeah, that does look like a gap. Tampermonkey's related issue, though it seems to be mostly focused on Chrome: https://github.com/Tampermonkey/tampermonkey/issues/644 https://github.com/Tampermonkey/tampermonkey/issues/644
  - lapcat 4y ago
    This is because Firefox is adding Manifest v3 support without dropping v2 support, unlike Chrome.