Add default search engine option
It would be a good idea to give users the ability to set their default search engine in the configuration in my opinion, since most default search engines don't respect the user's privacy.
We could include:
- DuckDuckGo
- StartPage
- Searx
- etc.
I've done a bit of research and it looks like the search engines are stored in a JSON called search.json in the profile folder. There's the browser.search.defaultenginename, and browser.search.selectedEngine option in about:config and the prefs which sets the standard search engine.
I guess it needs a third type of setting, "file" which adds a file to a defined path (not only in extensions/ as folder).
Depends on the infrastructure for including files. https://github.com/allo-/firefox-profilemaker/issues/41