Unfortunately, any repeated alarms do not sound. The bug submit form on their page also did not work.

спасибо, реально выручает

fast, clean, works perfectly

все работает просто отлично!

works like a charm

it has distracting timer end pop-up in center of the screen. Minimum timer countdown is 1 minute.
No remaining time is visible in the status bar, just an icon (that's maybe FF thing and can't be changed by add-ons).

love it a lot, just really wish that there was a loop feature on the timers, so that i don't have to manually start another when it ends

because i use the 5 minutes timer a lot, and have to reset it for as long as i'm studying to keep my focus.

- edit:
the alarm feature hasn't been working for me, i don't know what to do :/

i have them as a preset, with the loop feature on for every day,

but i think i need to manually toggle them on and off, in order for the alarms to work... which can be very tedious because i have a lot.

Needs to be able to countdown seconds. For that reason, am going to replace it with a different extension.

the best of

usefull! But when i enter a number, I can't use the numpad or the mouse wheel. Is it normal? To enter 25, i need to click 25 times on the arrow. It seems too much!

It's really useful add

Interesting add, nice one

LOVE this extension, it's very handy. :) I spend a lot of time sitting at my computer and lose track of time easily. I use this extension to set timers for my laundry, timers so I don't forget my tea in the kitchen until it's cold, timers for food I put in the oven... very useful. For timers you only can have four 'slots', but you can easily click on any slot and adjust the time, so you can tweak them to suit whatever you need it for. I just now added an alarm to remember to do some stretches at a specific time, which prompted me to think about how handy this thing is and finally get around to leaving a review lol :)

Works as advertised and requires no permissions...which is nice.

Simple, elegant and well designed extension. Just does what it needs to and does it well. Would have liked to see the source published to submit PR against as there are a couple of enhancements I would like to see considered.
Great effort Karl.