Getting detailed error logs

Firefox

1. Visit about:debugging
2. Check Enable add-on debugging
3. Scroll down to save-in and click debug
4. See if any errors show up in the console when saving to .

https://developer.mozilla.org/en-US/Add-ons/Add-on_Debugger

Chrome

1. Visit chrome://extensions/
2. Check Developer mode
3. Scroll down to save-in and click inspect background page
4. See if any errors show up in the console when saving to .

https://developer.chrome.com/extensions/tut_debugging

Debug information

(>= 2.0.0) Click the Show debug information button under the More options section on the options page

Debug logs

If needed, turn on Enable debug logging in options for even more detailed logs.