this post was submitted on 28 Aug 2023
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How can I search the API(s) for developing Firefox addons? (lemmy.world)
submitted 1 year ago by TheTwelveYearOld@lemmy.world to c/firefox@lemmy.ml
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I’m wonder if its possible to change or refresh tab favicons and only favicons (without refreshing whole tabs). I looked through some pages on MDN and about WebExtensions but I haven’t found any search bars. I’ve also done Google searches specifically for that with no luck.

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[–] BlackEco@lemmy.blackeco.com 3 points 1 year ago* (last edited 1 year ago)

I know you can do this because of the AWS Favicon Update add-on. My advice would be to take a look at how it does it by downloading the XPI from the versions page and unziping its content.

Edit: I did so and its mechanism is fairly basic: it's a content script that replaces the favicon's URL in the link tag in the document.