Memo to myself:
To turn on inline autocomplete in the Firefox web browser…
- Enter about:config in the URL field
- Right-click on the page and create a new Boolean value
- Enter browser.urlbar.autoFill as the preference name (note, case-sensitive: ‘F’, not ‘f’)
- Set the value to true
There. Maybe next time I won’t have to Google for it again.












For those who changed urlbar.autoFill to true but still don’t see anything: make sure that urlbar.maxRichResults is not set to 0. (The default is 12, which you get by right-clicking on the setting and choosing ‘reset’).
This works for Mac as well – Inline Autocomlete for Firefox Mac Version… Thanks you so much for this!