[Bug 355052] Re: "check for updates" button does not work.

[Steffen Banhardt]

*** This bug is a duplicate of bug 148487 ***
    https://bugs.launchpad.net/bugs/148487

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

The update button is deactivated in Ubuntu, the updates come trough
Update Manager, because the Ubuntu build is not the official build.

This bug is a duplicate of #148487

** This bug has been marked a duplicate of bug 148487
   i can not update my thunderbird and can not download adds on

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"check for updates" button does not work.
https://bugs.launchpad.net/bugs/355052
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