This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

how to bringing the previous layout back?

  • 2 iimpendulo
  • 0 inale ngxaki
  • 2 views
  • Impendulo yokugqibela ngu david

more options

I recently noticed some changes to the appearance of Thunderbird that I didn't like: the button bar (now "Universal Toolbar" was flattened, it was moved above the menu bar, and the "quick filter" seems to occupy more space on my screen (not sure if this is actually true or just an optical illusion).

Anyway I figured out how to bring back the original appearance of the main button bar (with full sized buttons) and I followed the instructions to move the menu bar back to the top where it belongs. So I have 2 questions:

  • Might enabling the "toolkit.legacyUserProfileCustomizations.stylesheets" configuration item affect the security of my system? Allowing custom style sheets may be fine, but I don't want to be enabling custom Javascript too, and am not smart enough to figure out if the one may accidentally cause the other.
  • How do I merge the 2 GUI elements ("Inbox" line and "Quick filter" toolbar) in the attached screenshot into one single line or row?
I recently noticed some changes to the appearance of Thunderbird that I didn't like: the button bar (now "Universal Toolbar" was flattened, it was moved above the menu bar, and the "quick filter" seems to occupy more space on my screen (not sure if this is actually true or just an optical illusion). Anyway I figured out how to bring back the original appearance of the main button bar (with full sized buttons) and I followed [https://support.mozilla.org/en-US/questions/1422908 the instructions to move the menu bar back to the top] where it belongs. So I have 2 questions: * Might enabling the "toolkit.legacyUserProfileCustomizations.stylesheets" configuration item affect the security of my system? Allowing custom style sheets may be fine, but I don't want to be enabling custom Javascript too, and am not smart enough to figure out if the one may accidentally cause the other. * How do I merge the 2 GUI elements ("Inbox" line and "Quick filter" toolbar) in the attached screenshot into one single line or row?
Iqhotyoshelwe imifanekiso ekwisikrini

All Replies (2)

more options

The quick filter does not occupy more space. But, you are seeing a new line at the top of the message list, above the column headers. This is where you see the button of quick filters. You cannot remove this new line. But you can close the quick filter bar.

You can also install and add-on to reduce the size of the message header in the message display pane.

more options

That addon is at https://addons.thunderbird.net/en-US/thunderbird/addon/compact-headers/ On your question, the toolkit.legacy... item is to allow user profile customizations in the userChrome.css file, nothing else.