Maybe it's because I have all the privacy features on Firefox enabled but I tried turning cookies on for this extension to track my time on the clock but it didn't work. Only was able to track one short break I took but YMMV maybe it was my Firefox configuration.

Good idea... poorly implemented... or is it still under development? Two stars for the effort, but in the mean time.. deleted.

This app was useless. I put two stars because I LOVE the idea and the creativity, but you can only set is for 3 different times!

I like the simplicity of this add-on. It just consists of 5 buttons - a button for 25-minute Pomodoro chunks, 3 buttons for 5-, 10-, and 15-minute breaks, and a button for resetting the timer. While the timer is running, it also displays the remaining minutes on a small number on the toolbar icon, which is pretty convenient.

Unfortunately, it's so simple that some basics are missing.
- No alarm sound when timer is finished
- Break timer doesn't automatically start
- Doesn't really support the long break after 4 Pomodoros

Would use it again if the above features are added.