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Open Google Tasks (default)
Adds an icon on the spaces toolbar to quickly open the default Google Tasks page
96 users
Custom Headers View
Display custom email headers in the mail header toolbar. This extension allows you to make visible specific headers in the toolbar, like received, date, DuckDuckGo's duck-original- headers to show the sender's email in the original format, etc.
21 users
Owl for Exchange
Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).
50,656 users
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