About this extension

Normally when encountering a JSON document (content type "application/json"), Firefox simply prompts you to download the file. With the JSONView extension, JSON documents are shown in the browser similar to how XML documents are shown. The document is formatted, highlighted, and arrays and objects can be collapsed. Even if the JSON document contains errors, JSONView will still show the raw text.
Once you've got JSONView installed, check out http://jsonview.com/example.json to see the extension in action!

Developer comments

Known bugs:
* "Save as..." saves HTML instead of the original JSON document.
* "Page Info" panel reports content as HTML instead of JSON.
* Copying and pasting from the formatted JSON does not copy the original document.

Rate your experience

Report this add-on for abuse

If you think this add-on violates Mozilla's add-on policies or has security or privacy issues, please report these issues to Mozilla using this form.

Please don't use this form to report bugs or request add-on features; this report will be sent to Mozilla and not to the add-on developer.

Release notes for 2.4.3

Fixed content type matching for things like application/hal+json

Used by

Report this add-on for abuse