Case where you need to view JSON file in Firefox [DIY]
If you plan to reinstall Windows or another Operating System you’re on, you can backup all bookmarks saved in Firefox to a single JSON file from Bookmarks Manager in Firefox (use Ctrl +Shift +B), you can use that file to restore your bookmarks later if you want.
After installing this extension, whenever you came across a JSON file in a page, this extension automatically displays its contents.
Visit this JSON example link to test whether JSONView is working correctly or not.
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