Doesn't work. After first run and clicking 'allow', I got some kin of a certificate mismatch error. Added and exception to progress.

Second time I tried, I had to click 'allow' again. Then I get a "Forbidden. You don't have permission to access /provider_cb on this server." error and cannot do anything.

Please fix. Something is seriously wrong. Maybe you shouldn't expire the bookmarklet so soon.

(Firefox 58.0a1)


Update:
1. As requested, the message says "Authorize Bitly Firefox Extension to use your account?" and the URL is this - https://bitly.com/oauth/authorize?client_id=1fc0e809b1c428e80a16dd4aba13da1c3bb493c2&redirect_uri=https%3A%2F%2F7debcff650c3f0650740a46b025faefd6932c0d8.extensions.allizom.org%2Fprovider_cb

2. After clicking on allow, I get the message "Your connection is not secure. The owner of 7debcff650c3f0650740a46b025faefd6932c0d8.extensions.allizom.org has configured their website improperly. To protect your information from being stolen, Nightly has not connected to this website."
The URL here is - https://7debcff650c3f0650740a46b025faefd6932c0d8.extensions.allizom.org/provider_cb?code
=8f81ddbd6496e8acc995fe75bb6a0df3ead9fc35

I can add an exception during step 2, after which it's not usable