Can't open attachments

[Solarcatcher]

After upgrading from Warty to 5.04 RC yesterday, I cannot open attachements
anymore. Neither double-klicking nor right-klicking -> open does anything, I
tried several different attachments. Saving the file worked, though. Opening
attachments worked flawlessly before upgrading.

[Solarcatcher (mail5000)]

After keeping on trying different things, I was able to resolve the problem
myself: After uninstalling a few extensions, which did not come through Ubuntu,
opening attachments works just fine. Therefore, this Bug should be considered
invalid.

[tonimarie (tonimarie)]

have not added any extensions that didn't come through Umbuntoo and cannot open documents, account settings are coming up with heaps of xml parsing errors and preferences will not open at all. this below is what comes up when i try to find the version which should be the latest.

XML Parsing Error: syntax error
Location: chrome://messenger/content/aboutDialog.xul
Line Number 1, Column 1:ter class="progressmeter-statusbar" id="statusbar-icon" mode="normal" value="0"/>
^

i can provide more examples of this if required

[Thomas Butter (tbutter)]

This usually happens if a file is corrupted or you updated thunderbird and did not restart it.

Does it still happen after reinstalling thunderbird?

[Jorge Castro (jorge)]

 Thank you for taking the time to report this bug and helping to make Ubuntu better. However, you are not using the most recent version of this package for your Ubuntu release. Please upgrade to the most recent version and let us know if you are still having this issue. Thanks in advance.

[Connor Imes (ckimes)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!