Review for Provider for Google Calendar by Zafar Iqbal
Rated 5 out of 5 stars
Update: unsubscribing birthday calendar helped tremendously. I've updated my rating to 4/5 stars. It would have been 5/5 if it wasn't for such an work-around.
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I'm all of the sudden experiencing severe slowdowns in TB. I've been using this add-on for quiet some time and have been happy with it, but since yesterday, TB now needs up to 2 minutes or so, because I can actually use it. While in TB and writing a mail, I occasionally experience slowdowns here as well. Could be syncing related.
I've tried disabling all calendars, but that didn't help anything. Only by disabling this add-on I can access TB normally.
To create your own collections, you must have a Mozilla Add-ons account.