I see your point, but I see a huge benefit to standardization here. This will help with the 90% of tasks that all browsers are capable of - instead of two ways

I see your point, but I see a huge benefit to standardization here. This will help with the 90% of tasks that all browsers are capable of - instead of two ways to do the same thing, you get one way - developers jobs get easier, cross compatibility actually works. For the remaining 10%, I agree there is some risk - but per the webextension group's charter (https://github.com/w3c/webextensions/blob/main/charter.md https://github.com/w3c/webextensions/blob/main/charter.md) section on "Autonomy" > Given this, we expect browser vendors to offer APIs and capabilities beyond what's specified.