WebExtensions: modify about:home

Add-ons Development
1

I’ve been working on a start page extender for a while now, but I just found out all the older technologies are being phased out soon, so I guess I have to migrate. In the past I accomplished this by

  1. from bootstrap.js, assembling and saving a custom start page based on about:home, then
  2. using Components.manager.addBootstrappedManifestLocation to load a chrome.manifest which
  3. contained three override chrome://browser/content/abouthome/aboutHome.xhtml modified.xhtml statements to implement my modified js, css, and xhtml files for the rest of the session

This was fast, and it worked well. I’ve spent hours already and I just can’t figure out how to accomplish the same thing with WebExtensions. Can someone please point me in the right direction?

Thanks for reading.

2

There are new APIs that you can use:

“chrome_settings_overrides” is only available from FF55