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how to bringing the previous layout back?

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  • Last reply by david

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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?
Attached screenshots

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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.

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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.