Thunderbird Support Forum

In our company, we have recently updated Thunderbird from version 52.3.0 to 115.9.0. Now we have a problem with href links containing file URIs in our messages. We often receive file links pointing to files in our local intranet, which look like this: <a href="file://///intranet.local/dfs/output/movie.mp4" class="moz-txt-link-freetext" moz-do-not-send="true">movie.mp4</a> Up to Thunterbird version 98.0b3 it was possible to open these files by simply clicking the link. But since version 99.0b1 file links don't open any more. Instead, the error console displays the following message: Security Error: Content at mailbox:///C:/Users/username/AppData/Roaming/Thunderbird/Profiles/profilename/Mail/Local%20Folders/Inbox?number=12345 may not load or link to file://///intranet.local/dfs/output/movie.mp4. Fortunately, it is possible to open the link with "Open Link In Browser" from the context menu. But we would like to get rid of this extra click. I already followed the steps in this document: http://kb.mozillazine.org/Links_to_local_pages_do_not_work#Firefox_1.5.2C_Mozilla_1.8.2C_and_newer Interestingly, this document is older than the time, when our problem was introduced into Thunderbird. Consequently, when I follow these steps, file links still don't open in an external application. Instead, they open inside of Thunderbird which is not the desired effect. To put my question in a nutshell: How can I open file links by left-clicking on them, just the way they open, when I right-click on them and select "Open Link In Browser"?

Steps to reproduce: On a Windows computer create a new mail. Press Ctrl-K to insert a link. Enter the following path with username replaced by your windows logon name: file:///C:/Users/username/Documents Save and close the mail. Watch the mail in the drafts folder. Click the link. Nothing happens, but you can see a message in the error console. Right click the link and select "Open Link In Browser". This opens your windows explorer.

Any solution is welcome, even if it's potentially insecure, since our computers don't have any internet access and we can receive internal mail only.

Hello from one of my mails I can`t see the external issues. I gave permission to show all content in the mail, and that was stored in the list permission to show all external content, but still the content is not shown. Can you please help me, and tell me what I can do so I can see all the external issues in the mail.

Thanks and with regards, Henny Noorman

I am getting about 50 phishing e-mails a day. They are as obvious as can be, but becoming a pain in the ass to mark as junk. None of the sending e-mail addresses are real and they all wind up with DKIM=fail. I am not finding a solution I am happy with, having considered 1. a Thunderbird add-in that checks DKIM - it has mixed reviews, and I have some clients whose e-mail systems do not respond to DKIM verification 2. SpamAssassin - not quite sure what this does, and I really do not to add another layer 3. I have enabled - in Thunderbird's Account setting and elsewhere - junk filtering, but it shows no signs of being successfully trained despite having manually marked hundreds of phishing e-mails as Junk. 4. I do not see how to create a filter to catch these (I am assuming looking for DKIM=fail in "body" would fail as "body" refers to rendered e-mail contents, not the raw format.

Help would be appreciated. Jonathan