Edit: 1. I miss the option for syncing timers between Android and PC 2. Exporting config on Android does nothing. Great addon with so many options for managing your time! And huge plus for supporting new Firefox for Android!
Great addon. However there is an issue on Firefox for Android with the time limit: the countdown keeps ticking when I switch to another app. (when the countdown reaches 0:00 the current page stays unlocked => my bad, it's a setting)
An excellent replacement for StayFocusd (which is available only for Chromium). I would have rated it 5 stars, but I gave just 4 because it's missing one feature I want: remove the count-down timer from the add-on icon, and display it only on the page.
5 stars if I could figure out a way to block an index site (home page) and have sub-domains not be blocked by default (manual exclusions aren't suitable if you'll want to access pages via a Google search, for example). Other than that works great.