Google's Manifest V3 deadline is here. If you have a Chrome extension still running on MV2, you're on...
Google's Manifest V3 deadline is here. If you have a Chrome extension still running on MV2, you're on borrowed time.
I migrated PR Focus (and two other extensions) from MV2 to MV3. Nothing broke catastrophically — but several things surprised me.
Here's what I learned, so you don't have to figure it out the hard way.
The big changes
1. Background pages → Service workers
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