Add custom search engine

Add custom search engine

Add a custom search engine to the list of available search engines in the search bar and URL bar.

  • Add custom search engine
  • Add custom search engine
  • Add custom search engine
What is Add custom search engine?
"Add custom search engine" is a versatile Firefox extension designed to facilitate personalised browsing. It lets users input a custom search engine to the selection in Firefox's search and URL bar. The inputs required include a name, search URL, and optionally an icon, suggestion URL, POST query parameters, encoding, and a brief description.
Rating: 4.73 (426)
Version: 4.2 (Last updated: 2021-07-20)
Creation date: 2018-07-30
Weekly download count: 304
Firefox on Android: No
Risk impact: Low risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • search
Size: 66.77K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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Notice for Firefox 78+: Because of changes made by Mozilla the add-on is now less convenient. I am sorry for the inconvenience.

Add a custom search engine to the list of available search engines in the search bar and URL bar.

Your custom search engine needs a name and search URL. Additionally fields include an icon, a suggestion URL, POST query parameters, the input encoding and a description.

Icons can be selected from your local computer or specified as an URL pointing to an image.

The extension UI is accessible via a button right next to the URL/search bar or the options in about:addons.

Due to a technical limitation with Firefox WebExtensions, all data entered when creating your custom search engine is uploaded to

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Easy installation
  • Flawless function
  • Extremely useful
  • Unclear instructions
Most mentioned
  • Works perfectly
  • Easy installation
  • Flawless function
  • Thanks Tom Schuster
Recent reviews
I'd give this 5 stars, except the instructions to use it aren't at all clear. How I got it to work (to add as a default to in Windows Firefox v 126.0 64bit: 1) add (ie, install) the extension 2) restart FireFox 3) Right-click search box. You'll then be given the option to add a custom search; click this, then enter the details. Finish. 4) go to firefox->settings->search and your new custom search engine should appear at the bottom of the "Default Search Engine" drop-down list. Choose it. 5) Voila! I don't like running extensions when not in use, so I turned it off. When I restarted FireFox, my choice ( was still active. Thanks @Tom Schuster
by JimC, 2024-05-16

View all user reviews
Risk impact

Add custom search engine is relatively safe to use as it requires very minimum permissions.

Risk likelihood

Add custom search engine has earned a fairly good reputation and likely can be trusted.

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