Can you please port it to Firefox?

[andreicristianpetcu]

Firefox has almost the same APIs as Chrome https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Browser_support_for_JavaScript_APIs

Most extensions take minutes to port https://vimeo.com/241435808

[sbrudz]

Firefox is definitely on our todo list. We probably won't have bandwidth to work on it until the Spring, though.

[sbrudz]

As noted in the PR above, this is partially working on Firefox. The main issue remaining is that the Just Not Sorry button does not appear because we're using the chrome.declarativecontent API, which Firefox doesn't support. The workaround is to use the pageAction API instead.

Here are the steps remaining to get JNS fully ported to Firefox:

• convert the background.js code to use the pageAction API so that the icon appears on Firefox
• install the polyfill and switch from using chrome to browser
• add automated browser test case for firefox (requires Add automated "compose new" E2E web test for Chrome #90)
• set up extension on firefox store
• set up automated publishing process for beta
• set up automated publishing process for master