Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

userChrome.css not working on Mac OS High Sierra

  • 1 odgovor
  • 1 ima ovaj problem
  • 29 views
  • Posljednji odgovor poslao Toad-Hall

more options

I'm using Thunderbird 60 on both Windows and Mac OS, and I use userChrome.css to change font size and color for folders and emails. The problem is that userChrome.css is working well on windows but I can't make it work on Mac OS High Sierra, the file path is: " Default Profile Folder ( from Troubleshooting Information ) \chrome\userChrome.css " and the code is as follow:


/* set default namespace to XUL */

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

  1. folderTree > treechildren {font-size: 16px !important; font-family: Arial!important; }

treechildren:-moz-tree-cell-text(folderNameCol)

{color: blue !important;}

/* Make unread messages red and bold */

treechildren:-moz-tree-cell-text(unread) { font-size: 16px !important; font-family: "Tohama" !important; font-weight: bold !important; color: red !important; }

/* Make read messages green and normal*/

treechildren:-moz-tree-cell-text(read) { font-size: 14px !important; font-family: "Tohama" !important; font-weight: bold !important; color: green !important; }

treechildren:-moz-tree-row { height:24px !important; }

/*treechildren:-moz-tree-cell { height:24px !important; line height: 24px !important; } */


I confirm again this code is working on windows but not working on Mac OS High Sierra, so I'm hoping for a solution for this.

I'm using Thunderbird 60 on both Windows and Mac OS, and I use userChrome.css to change font size and color for folders and emails. The problem is that userChrome.css is working well on windows but I can't make it work on Mac OS High Sierra, the file path is: " Default Profile Folder ( from Troubleshooting Information ) \chrome\userChrome.css " and the code is as follow: ----------------------------------------------------------------------------------------------------------------------------------------------------------------- /* set default namespace to XUL */ @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); #folderTree > treechildren {font-size: 16px !important; font-family: Arial!important; } treechildren:-moz-tree-cell-text(folderNameCol) {color: blue !important;} /* Make unread messages red and bold */ treechildren:-moz-tree-cell-text(unread) { font-size: 16px !important; font-family: "Tohama" !important; font-weight: bold !important; color: red !important; } /* Make read messages green and normal*/ treechildren:-moz-tree-cell-text(read) { font-size: 14px !important; font-family: "Tohama" !important; font-weight: bold !important; color: green !important; } treechildren:-moz-tree-row { height:24px !important; } /*treechildren:-moz-tree-cell { height:24px !important; line height: 24px !important; } */ ----------------------------------------------------------------------------------------------------------------------------------------------------------------- I confirm again this code is working on windows but not working on Mac OS High Sierra, so I'm hoping for a solution for this.

All Replies (1)

more options

check the file type of the userChrome.css file to make sure that it is a CSS file and not a .txt text file.

what I have noticed:


re : folderTree > treechildren {font-size: 16px !important; font-family: Arial!important; }

I would put a space after 'Arial' so... font-family: Arial !important; }

Note: The section for read mail to be normal....you have set font weight as 'bold'...perhaps you mean 'normal' /* Make read messages green and normal*/ treechildren:-moz-tree-cell-text(read) { font-size: 14px !important; font-family: "Tohama" !important; font-weight: normal !important; color: green !important; }