Firefox

firefox custom

FireFox Tips

Custom color theme

in Firefox Dev:

browser.devedition.theme.enabled = true
devtools.theme = dark

Maybe also check

lightweightThemes.selectedThemeID = 

Open tabs close to the current tab

  • Load about:config?filter=browser.tabs.insertAfterCurrent in the Firefox address bar.
  • Confirm that you will be careful if the warning page is displayed.
  • Set the preference to true by double-clicking on it.
  • Restart the browser.

Update: the preference is only available in Firefox Beta, Dev or Nightly at the time of writing.

 about:config?filter=browser.tabs.insertAfterCurrent 

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