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reader view, hide left panel

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  • Last reply by cor-el

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I would like to hide the left panel present in reader view mode. Setting reader.toolbar.vertical to false in about:config does nothing after restart. How to hide this panel on the left? CSS or something?

I would like to hide the left panel present in reader view mode. Setting reader.toolbar.vertical to false in about:config does nothing after restart. How to hide this panel on the left? CSS or something?

Chosen solution

You can add code to the userContent.css file.


#reader-toolbar { display:none !important; }

The customization files userChrome.css (user interface) and userContent.css (websites) are located in the chrome folder in the Firefox profile folder.

You can use this button to go to the current Firefox profile folder:

  • Create the chrome folder (lowercase) in the <xxxxxxxx>.default profile folder if this folder doesn't exist
  • Use a plain text editor to create userContent.css file in the chrome folder (file name is case sensitive)
  • Paste the code in the userContent.css file
  • Save the file as userContent.css in the chrome folder
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Chosen Solution

You can add code to the userContent.css file.


#reader-toolbar { display:none !important; }

The customization files userChrome.css (user interface) and userContent.css (websites) are located in the chrome folder in the Firefox profile folder.

You can use this button to go to the current Firefox profile folder:

  • Create the chrome folder (lowercase) in the <xxxxxxxx>.default profile folder if this folder doesn't exist
  • Use a plain text editor to create userContent.css file in the chrome folder (file name is case sensitive)
  • Paste the code in the userContent.css file
  • Save the file as userContent.css in the chrome folder