It’s been a while, since I’ve posted a Firefox or Thunderbird tip; which I assume is the primary reason I have any subscribers. I apologize. Here’s another Thunderbird attachment box tip, that I’ve found useful.
Thunderbird has a width limit on the display of attachment names, which means if an attachment has a long name, the full name may not be displayed. Instead you’ll get an abbreviated version. For example, “abcd…xyz.eml”.
You can increase the width limit, to fit your tastes. This is particularly useful for those with large screen resolutions. Add the following script to your userChrome.css file:
#attachmentBucket, .attachmentBox {min-width: 30em;}
“30em” is what I use, but you can modify that to your liking.