Finally a proper Pomodoro!!! I used a good Pomodoro in Chrome that started timer on click. Next click started the break timer. When timer ended, the next one is not starting, you get a notification (new page) with a button to start next timer is session (break, big break, work). If you need to pause break or work, you click the right mouse button to bring up the menu with those buttons (pause, reset, settings)

I searched the addons for Mozilla and all timers require too many clicks and navigating in fancy windows and multiple buttons.

This addon is a saver! You just click to work and click to reset. Thank you. If you implement the logics described abouve, your addon will be more awesome. But even without it, it is the best for me.

Thank you, Kyan!!!

can you please add option so it star calculation from a full hour, so if its set on 15min it alerts at 12:15 , 12:30 ... and so on. thanks

Simple and works. THK.

good experience so far, but sadly there isn't a pause option

Interesting and good. Easy to use as a command-line extension.
- I'm wondering if a small bubble as interface could not be also useful and helpful for managing data and for a mouse-centered use, something light, with predefined buttons and time values and why not with step hours (10h, 10h30, 11h30, beginning from the current computer time).
-You should write (in extension tooltip on toolbar maybe or somewhere else) the final time (like "at 10h15" timer will end).
-A very useful feature would be a next step command : instead writing timer + min, you could say timer * or timer *. : if it is 9h52, then in first case, timer calculates itself that it has to sound at the next hour 10h00 for * and for *. it would mean that clock sounds to 10h30.
-When we click onto the icon, the time considered should not be basic 25' but the last time used preferably.
-The notification could be much more flashing to keep attention
-Change sound surely!