Рейтинг 3 из 5 звёзд

I am not yet ready to do a full review, as I just started using the add-on. It does seem to be working well, but two things prevent me from going further.

First, the link to documentation still points to a Google Code site. I believe Google has discontinued this service, or perhaps restricts access. Either way, I cannot read the documentation and suggest moving it to a more public place.

Second, I have two Google calendars with names that start with "Personal." "Personal - Long Term" has birthdays, anniversaries, dates for memorials for dead friends & relatives, etc. "Personal - Short Term" has doctor appointments, scheduled car services, meetings with friends, parties, etc. But the drop-down menu in the add-on only shows one choice, "Personal." Since the calendar names are legal for Google Calendar, this seems to be a bug that should be fixed.

I'd also like to be able to specify a time for a task. (E.g., to make a phone call at 11 AM.)

P.S. I would have written to the developer directly, but I cannot find an email address.

P.P.S. Regarding XtremeVision's comment about auto-sync and Tomasz's reply, I suggest always syncing when a new task is added and graying out the sync icon until the user changes a task's content. (E.g., the way LibreOffice grays out the save button after a file has been saved.) Since this is a two-way sync, there might also be an option to activate the icon/button at specific intervals.

Это отзыв для предыдущей версии этого дополнения (0.5.2). 

The Google Code site never hosted any documentation, just the source code (which is available right here on the Mozilla add-ons site) and an issue tracker, which mostly fell into disuse long before Google Code was shut down, as I stopped actively maintaining the add-on. For the record, I am unaware of any forks, and no-one ever expressed interest in taking over the original project either, so any updates or bug fixes are unlikely.