For instance, in the settings page for Tab Session Manager, you can click an upload button to upload JSON session files from your device to the addon. I looked up if UBlock Origin Lite (the re-implementation of UBlock Origin with Manifest v3) supports custom filter lists and all the results said no it can’t due to the limitations of Manifest V3. OTOH I found a StackOverflow post and Google Groups discussion saying its possible with the filesystem API.
Firefox isn’t forcing Manifest V3, is it?
They are forcing MV3. They wrote a blog post about it a while back. But there keeping some of MV2
Edit: found the post. https://blog.mozilla.org/addons/2022/05/18/manifest-v3-in-firefox-recap-next-steps/
From an update from last week:
Firefox, however, has no plans to deprecate MV2 and will continue to support MV2 extensions for the foreseeable future. And even if we re-evaluate this decision at some point down the road, we anticipate providing a notice of at least 12 months for developers to adjust accordingly and not feel rushed.
Oh that’s fantastic! Thanks for the update.
Your examples highlight two different questions:
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Is a feature technically possible
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Is Google going to implement a feature which is technically possible.
This is why you’re getting two different answers.
As far as FF’s implementation of MV3, I have no idea how they will implement it. The haven’t said much about MV3 besides that they’ll keep the adblocking features of MV2 alive.
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