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Preview of Monaco JSON Viewer

Monaco JSON Viewer by streetraceing

This extension replaces the regular json file viewer in Firefox and opens json using the Monaco editor. For the extension to work, you must disable the devtools option.jsonview.enabled in the about:config section.

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About this extension
The Monaco editor works well with large files, which is not the case with the regular Firefox viewer. This extension integrates a stripped-down version of monaco-editor-0.52.2 when viewing a document with the json content type. It has automatic support for light and dark themes, as well as support for a list of languages en, ru, de, es, fr, it, ja, ko, ZH-cn, zh-tw (determined by browser settings)
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Required permissions:

  • Display notifications to you
  • Access your data for all websites
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Add-on Links
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Version
1.1
Size
5.33 MB
Last updated
4 months ago (Aug 21, 2025)
Related Categories
  • Web Development
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License
MIT License
Version History
  • See all versions
Tags
  • dark mode
  • translate
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