With Bitly's browser extension, you can add Bitly to your Firefox toolbar and quickly shorten a URL without leaving the page.
To install the Bitly Firefox extension:
- In your Firefox browser, go to the Bitly extension in the Firefox Add-ons page.
- Click Add to Firefox.
- A pop-up appears next to the extensions icon. Click Add.
- Choose whether to allow the Bitly extension to run in Private Windows. Click Okay.