You can find JSONLZ4 files in the bookmarkbackups folder located in the Firefox user profile directory. The .jsonlz4 file stores backup of bookmarks in JSON format and uses data compression. JSONLZ4 files are referenced by Firefox to load user profile settings. The name of the file indicates the day it was created. However, you can restore JSONLZ4 bookmark backup files in Firefox by following directions. Below you will find an index of software programs that can be used to open JSONLZ4 files. Files with JSONLZ4 extension can be found on any operating system. File extension jsonlz4 is mainly associated with Firefox. Firefox automatically creates 5 backup files in the bookmarkbackups folder inside the user profile folder.
On Microsoft Windows the profile folder is usually located at: C:\Users\”Windows login/user name”\AppData\Roaming\Mozilla\Firefox\Profiles\xxxxxxxx.default\. xxxxxxxx is a string of random characters. The file with the extension JSONLZ4 is the Backup Files file type. In addition to this file, the Backup Files category includes 243 related files. This file type can also be opened by 5 other programs.
When you double-click a file to open it, Windows examines the filename extension. If Windows does not recognize a filename extension, you receive a message to select an app to open the .jsonlz4 file. It means the operating system does not have a default app associated with the .jsonlz4 file type. The JSONLZ4 file extension can be used by various programs, including potentially harmful software. Be cautious when dealing with .jsonlz4 files from unknown sources.
Mozilla Firefox
Mozlz4-edit