RESTClient, a debugger for RESTful web services. Version History

15 versions

Be careful with old versions!

These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.

Version 3.0.7 3.0 MiB Works with Firefox for Android 48.0 and later, Firefox 42.0 and later

Version 3.0.7

- Fixed MIME type detection bug.
- Fixed bug of OAuth 2.0 client credentials type bug.

Version 3.0.5 2.7 MiB Works with Firefox 42.0 and later

Version 3.0.5
* Fixed basic authentication unicode problem.
* Added OAuth 1.0 authentication.
* Added OAuth 2.0 support.
* Added CURL command support, you can copy your request as a curl

Version 3.0.4 2.6 MiB Works with Firefox 53.0 and later

* Added preview for JSON, XML response body
* Added data migration for migrating data (Saved headers, urls, and requests) from RESTClient 2. Now you can copy your RESTClient2 data from about:config page, then paste and import to RESTClient3
* Allow to import RESTClient 1 request file

Version 3.0.2 2.4 MiB Works with Firefox for Android 48.0 and later, Firefox 42.0 and later

Upgrade to web extension to support new Firefox. OAuth and OAuth 2.0 authentication is still under development. It will be ready in next version (3.0.3).

Now RESTClient is IndexedDB to store your favorite requests, you should export your favorite requests before upgrade. And you can import the exported file in the new version.

Version 2.0.5 264.4 KiB Works with Firefox 22.0 - 56.*

Fixed compatibility with Firefox 46

Version 264.4 KiB Works with Firefox 3.6 - 33.0

Version 2.0.3
  • Supported OAuth2 authentication
  • Fixed url history bug
  • Show HTTP request execution time

Version 255.9 KiB Works with Firefox 3.6 - 13.*

  • Fixed links in the returned xml - they are now clickable again
  • Added OAuth Realm support
  • Allow user to switch page layout (by precentage/fixed)
  • Allow user to view request headers in table or as tags
  • Added a remove all headers button
  • Fixed request URL input box size bug
  • Fixed OAuth query string bug
  • Fixed OAuth whitespace ending bug

Version 244.1 KiB Works with Firefox 3.6 - 12.*

  • Fixed XML result indentation
  • Remember open response tab
  • Fixed request url input box size bug
  • Support Firefox 12
  • Allow user to load old requests (exported by version 1.3.x)
  • Updated favorite url, add a drop down list for showing favorite URLs
  • Updated UI color, to enhance the request form

Version 225.8 KiB Works with Firefox 3.6 - 12.*

  • Re-designed the UI by using [twitter bootstrap](
  • Bind hotkeys to send request, input url, etc.
  • Fixed multiple set-cookie response bug (isseue #26)
  • Allow to copy response headers
  • Added theme support

Version 67.1 KiB Works with Firefox 3.5 - 11.*

Now, RESTClient will display different response tabs according to response content-type.

Version 65.2 KiB Works with Firefox 3.5 - 4.0.*

Version 1.3.2 62.0 KiB Works with Firefox 3.5 - 3.6.*


  • field values recovering when Firefox crashes

  • fixed header deleting (now you can use delete key when editing header name or value)

  • fixed display of json data (I’ve just moved css file to right place)

  • added ability to select and copy text from response (by adding right css style, that doesn’t work always properly)

  • field values storing when Firefox is shutting down by user

Great thanks for Kazuhiro's contribution ;)

Version 1.3.1 69.0 KiB Works with Firefox 3.5 - 3.6.*

Added Firefox 3.6 support,
Added oAuth support

Version 1.2.9 48.0 KiB Works with Firefox 2.0 - 3.5.*

Added the JSON highlight support.

Version 1.2.8 42.0 KiB Works with Firefox 2.0 - 3.5.*

Fixed Chinese i18n localization problem.
Update max support version number.