File Extension Database

Open JSONLZ4 File

The JSONLZ4 file is used to save the description of all the bookmarks used by the Firefox user profile as a compressed backup.

These files are primarily used by Mozilla's Firefox browser, and are similar to JSON files.

Because it is a backup copy, the JSONLZ4 file can be used to recover lost bookmarks when they are deleted, in one way or another, or when a browser version update is downloaded and installed.

The JSONLZ4 files are stored in the "bookmarkbackups" folder, which is inside the Firefox user profile directory.

Because there are multiple JSONLZ4 files in the same folder, the flag is the date it was created.

As mentioned above, the most used software package for working with JSONLZ4 files is:

Mozilla Firefox

How Can I Open JSONLZ4 File on Windows

We researched and learned that the best way to open JSONLZ4 file is to find a JSONLZ4 file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a JSONLZ4 file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open JSONLZ4 file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as JSONLZ4 file opener then try to search online for "JSONLZ4 viewer", "application to open JSONLZ4 file" or "open JSONLZ4 file" queries in the search engine you like.
Install the application you found and check if it can open JSONLZ4 file

How Can I Open JSONLZ4 File on Mac OS

We recommend to find a JSONLZ4 file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a JSONLZ4 file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with JSONLZ4 file.
If you know the Mac OS application which can work as JSONLZ4 file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open JSONLZ4 file in it.
If you don't know the application which can open JSONLZ4 file then try to search for "JSONLZ4 viewer", "application to open JSONLZ4 file" or "read JSONLZ4 file" queries in the online search engine you like.
Install the application you found and check if it can read JSONLZ4 file

How Can I Open JSONLZ4 File on Android

If you downloaded a JSONLZ4 file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded JSONLZ4 file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "JSONLZ4".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "JSONLZ4 viewer", "JSONLZ4 file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open JSONLZ4 File on iPhone or iPad

To open JSONLZ4 File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the JSONLZ4 file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "JSONLZ4". This way you can find apps which can open JSONLZ4 files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "JSONLZ4 viewer" or "JSONLZ4 file" online in your favorite search engine.