Font size in sidebar

[carolgot1]

How to change font size in sidebar FF Quantum?

[Reflective]

Try this: https://addons.mozilla.org/en-US/firefo ... e-changer/

[LIMPET235]

Hi,
I think that you'll find that the extension posted ^, does NOT actually function, as yet in v57.
Lots of complaints/-ve comments in the Reviews.

Just sayin'.

[carolgot1]

I know Theme & Font Size Changer is for prior 57 releases. I am looking for a css solution.

[Gingerbread Man]

First off, at the top of your userChrome.css file, add another @namespace line, like so.
(Either this or omit both @namespace lines, then delete the 5 instances of html| from the following style)

Code: Select all

@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);
@namespace html url(http://www.w3.org/1999/xhtml);

Then the actual style below that:

Code: Select all

#sidebar-title {
  font-size: 16px !important;
}

@-moz-document url("chrome://browser/content/bookmarks/bookmarksPanel.xul"),
url("chrome://browser/content/history/history-panel.xul") {

  treechildren,
  #sidebar-search-container,
  #viewButton .button-text,
  #search-box {
    font-size: 16px !important;
  }
  
}

@-moz-document url("chrome://browser/content/syncedtabs/sidebar.xhtml") {
  html|body,
  html|div,
  html|p,
  html|button {
    font-size: 16px !important;
  }
}