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userChrome.css not working

  • 11 replies
  • 20 have this problem
  • 38 views
  • Last reply by jaf1948

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I wish to reduce the line spacing in the Bookmarks sidebar. I found and followed an older thread here to create a userChrome.css file, but it is not working.

Details: System is FF 56.0.2 on MacOS 10.12 Sierra. Path to the css file is: MyUserName/Library/Application Support/Firefox/Profiles/MYPROFILE.default/chrome The css file was saved as plain text and MacOS identifies it as a css style sheet. The content of the css file is:

@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul); .sidebar-placesTree treechildren::-moz-tree-row, .placesTree treechildren::-moz-tree-row {

 height: 1.3em !important;
 border-width: 1px !important;

}

Can anyone please tell me what I'm doing wrong ?

I wish to reduce the line spacing in the Bookmarks sidebar. I found and followed an older thread here to create a userChrome.css file, but it is not working. Details: System is FF 56.0.2 on MacOS 10.12 Sierra. Path to the css file is: MyUserName/Library/Application Support/Firefox/Profiles/MYPROFILE.default/chrome The css file was saved as plain text and MacOS identifies it as a css style sheet. The content of the css file is: @namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul); .sidebar-placesTree treechildren::-moz-tree-row, .placesTree treechildren::-moz-tree-row { height: 1.3em !important; border-width: 1px !important; } Can anyone please tell me what I'm doing wrong ?

Modified by johkeeng

Chosen solution

See:

Do you mean something like this for the border?


@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */


@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

.sidebar-placesTreechildren::-moz-tree-row {
  height: 3em !important; /* high value to see whether is works */
}

.sidebar-placesTreechildren::-moz-tree-cell {
  border: 1px solid blue !important;
}

Read this answer in context 👍 1

All Replies (11)

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Chosen Solution

See:

Do you mean something like this for the border?


@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */


@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

.sidebar-placesTreechildren::-moz-tree-row {
  height: 3em !important; /* high value to see whether is works */
}

.sidebar-placesTreechildren::-moz-tree-cell {
  border: 1px solid blue !important;
}

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cor-el : My thanks -- your script works !!

To get what I wanted, I just changed the last line to border-width: 1px !important;

Can you help me understand why the original script I posted above does not work? Two differences I see are

  • Yours has two @namespace..... lines, one with quotation marks around the http.
  • Yours separates the two instructions (for height and for border) into two separate { .... } brackets.
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Some properties only work with specific pseudo classes.

Border works with ::-moz-tree-cell and height works with ::-moz-tree-row

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Thank you !!!

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johkeeng said

Thank you !!!

You inadvertenly marked your own post as   'Chosen Solution'   -   you can rectify that by clicking on the   'Undo'  button to the right of that post and then mark cor-el's post as 'Chosen Solution'.

Thank you in advance  !

('Glad your problem got solved  !)

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Happy112 - thank you, and ... done.

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I also have this problem which also started with FF 56.0.2 on MacOS 10.12 Sierra but am now on OS 10.13.1.

Just to clarify, I want to reduce the spacing in the bookmark sidebar as the gap between items is too wide.

FF seems to ignore my userChrome file altogether. I have put in the code that in on this solution and also the solution in https://support.mozilla.org/en-US/questions/975714#answer-495296 but nothing changes, even when I change the values for height or border width. The .css file is definitely in the right place so some help would be appreciated please.

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jaf1948 -- Just copy/paste cor-el's text above into your userChrome.css file, and change the last line to "border-width: 1px !important;". It worked for me. If you don't like the height, you can just edit the height value (I use 1.3 instead of 3).

The text I tried (see 1st post) was from the discussion you found, but it does not work.

I did ask cor-el above if he (or anyone) can explain what is wrong with the initial text (I assume a misplaced punctuation) but no one has volunteered an explanation.

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Thank you for the quick reply. I actually did 2 things - having 2 Macs, I copied the working userChrome.css from my other machine and then cut and pasted your text. Everything now works perfectly.

Thanks again.

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jaf1948 -- A correction, if you don't mind: It is cor-el's text that worked, so it is cor-el who deserves all the credit !!

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Thank you cor-el !