2fa-notifier
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Firefox - Icon does not update correctly in some cases
The browser action button icon doesn't correctly update in FF and can get into a state where it shows "No 2FA" on a page that does support 2FA.
To replicate:
- Open github.com. The 2FAN icon will correctly show the green check mark.
- Click the 2FAN icon to open the menu.
- Click the "Show 2FA Guide" button to open the docs
- A separate window opens with the docs. This subdomain of Github is not in the dataset, so the icon updates to show "No 2FA"
- Close the docs window.
- The 2FAN icon in the original window now shows "No 2FA" even though the page is still on github.com

Browser: Firefox 61.0.2 OS: OSX 10.13.6