The "webextensions-examples" repository is a collection of simple but complete and installable WebExtensions.
We're really happy to accept contributions, either as new examples or as improvements to the existing examples. This file lists some general guidelines to help contributors write useful examples.
There are many ways you can help improve this repository! For example:
- write a brand-new example: for example, you might notice that there are no examples highlighting a particular API.
- extend an existing example: for example, you might notice that an existing example could usefully be extended to demonstrate some extra APIs or techniques.
- fix a bug: we have a list of issues, or maybe you found your own.
- contribute a translation: find an example with a
_locales
directory in it, and create a translation of the example's localizable strings into a new language.
Examples should:
- have a clear function, that's easy to explain and understand
- focus on demonstrating how to use the WebExtension technology, minimizing any complex logic that's extraneous to the WebExtension technology itself
- demonstrate good-practice use of the technology, even at the expense of extra complexity
- include useful optional manifest.json keys:
description
icons
homepage_url
- omit the
applications
key, unless either of the following apply:- the example uses an API or other feature that's not yet available in the current released version of Firefox. In this case, include the
applications
key and setstrict_min_version
to the minimum required version of Firefox. - the example needs an explicitly specified ID (for example, native messaging requires an explicitly specified ID). In this case, include the
applications
key and setid
appropriately.
- the example uses an API or other feature that's not yet available in the current released version of Firefox. In this case, include the
If you're editing an existing file, code style should be consistent with the rest of the code in the file. Otherwise, code style should follow the style for WebExtensions code itself: https://wiki.mozilla.org/WebExtensions/Hacking#Code_Style.
Please note that the examples are all made available under the Mozilla Public License 2.0, so any contributions must be compatible with that license. If you're not sure about that, just ask.
If you need help with writing a WebExtension, email the dev-addons mailing list or contact the WebExtensions team in the #webextensions IRC channel on irc.mozilla.org.