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CloseReview for Gmail Manager NG by Alex Chapman
Rated 4 out of 5 stars
This is a great extension, but unfortunately broken since Firefox version 33.
For the information of troubled users : Following some community discussions, a patched version is available here : https://github.com/ath0mas/firefox-gmail-manager-ng/blob/develop/dist/gmail_manager_ng-0.6.5.3-fixFF32.xpi
Use at your own risk.
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