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Can no longer find Browser.tab.on.top in about:config

  • 2 replies
  • 4 have this problem
  • 4 views
  • Last reply by cor-el

Puckmaster99
Puckmaster99
more options

After downloading classic theme add on and then resetting browser.tab.on.top in about:config to false. Then clicked reset by accident and now it has disappeared whether I reinstall or reset all of Firefox

After downloading classic theme add on and then resetting browser.tab.on.top in about:config to false. Then clicked reset by accident and now it has disappeared whether I reinstall or reset all of Firefox

Chosen solution

browser.tabs.onTop is gone in Firefox 29. If you have Classic Theme Restorer,

  1. Open the Add-ons Manager (Ctrl+Shift+A; Mac: Command+Shift+A), Extensions category.
  2. Click the Options button next to Classic Theme Restorer.
  3. In the top left corner, set "Tabs not on top"
Read this answer in context 👍 4

All Replies (2)

Gingerbread Man
Gingerbread Man
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Chosen Solution

browser.tabs.onTop is gone in Firefox 29. If you have Classic Theme Restorer,

  1. Open the Add-ons Manager (Ctrl+Shift+A; Mac: Command+Shift+A), Extensions category.
  2. Click the Options button next to Classic Theme Restorer.
  3. In the top left corner, set "Tabs not on top"
cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Support to disable "Tabs on Top" has been removed from Firefox 29 and later and toggling the browser.tabs.onTop pref to false on the about:config page is no longer possible to get the tabs on top.

You can reset the browser.tabs.onTop pref to remove the pref from the about:config page on the next start of Firefox.