Idea: Read name / icon from manifest.json

[redeye86]

Wouldn't it make sense to read the name and icon of the app from the manifest.json? It is json anyway and linked in the of the page.
I am using the script in a multi-site installation and it is invoked from inside a javascript file that is not site specific. So I don't have the information about the name in the first place. At first I thought about reading the application name and icon path from some data-attribute (in body or html tag). But the manifest has to be linked anyway for this to work and the name and icon could be used as the default.

[redeye86]

I just found out it is even easier. Manifest information is available using an api and does not have to be fetched manually:
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/getManifest#parameters

Does not work in normal website context. It seems that the file has to be downloaded manually actually.