- .jsonlz4 - Mozilla Firefox Compressed Bookmarks Backup. The JSONLZ4 archive files are related to Mozilla Firefox.JSONLZ4 file is a Mozilla Firefox Compressed Bookmarks Backup. Mozilla Firefox is a free and open-source web browser developed by the Mozilla Corporation.
- Previous.jsonlz4 recovery.baklz4 recovery.jsonlz4 I can vouch that I myself recently used recovery.baklz4 from a backup of my whole HDD when FF randomly lost all my windows and tabs after a Windows crash and FF update. Then, go to your main profile folder-that means, go UP one step in the directory 'tree.'
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.) and possible program actions that can be done with the file: like open asd file, edit asd file, convert asd file, view asd file, play asd file etc. (if exist software for corresponding action in File-Extensions.org's database).
File TypeCompressed Firefox User Profile Data File
| Developer | Mozilla |
| Popularity | |
| Category | Compressed Files |
| Format | N/A |
What is a JSONLZ4 file?
A JSONLZ4 file contains compressed user profile data created by Mozilla Firefox, a free cross-platform web browser. It stores various profile data and settings, such as bookmarks, home page configuration, toolbar layout, and saved passwords. JSONLZ4 files are compressed with LZ4 compression to reduce their size.
You will most likely encounter JSONLZ4 files only if you use Firefox to browse the Internet and are exploring the Profile folder where Firefox stores information about your user profile. The reason your user information is saved in a separate place from the Firefox application is to protect your user profile from being deleted if you need to uninstall and reinstall Firefox on your computer.
Where are JSONLZ4 files stored?
JSONLZ4 files are stored in subdirectories of Firefox's Profiles directory, including the bookmarkbackups and datareporting/archived directories. Firefox's Profiles directory is stored in different locations on different operating systems.
In Windows - You can navigate to the location of your profile information by clicking the Menu icon (appears as three horizontal lines) and selecting Help → Troubleshooting Information in Firefox. Then, click the button next to 'Profile Folder' in the 'Application Basics' section to open a window that displays your profile folder. The directory is most likely the following path:
C:Users[username]AppDataRoamingMozillaFirefoxProfiles
In macOS - You can navigate to the location of your profile information by selecting Help → Troubleshooting Information in Firefox. Then, click the button next to 'Profile Folder' in the 'Application Basics' section to open a window that displays your profile folder. The directory is most likely the following path:
Convert Jsonlz4 File To Html
/Users/[username]/Library/Application Support/Firefox/Profiles/
Where are JSONLZ4 files that contain backup bookmarks stored?
JSONLZ4 files that store bookmarks are created by Firefox to back up bookmark information that can be restored in the web browser to recover bookmarks. Bookmarks may be lost for various reasons, such as a system crash or browser version update.
You can find JSONLZ4 files in the bookmarkbackups folder, which is located in the Firefox user profile directory. The name of the file indicates the day it was created. For example, a JSONLZ4 created on January 13, 2021 will be named similar to the bookmarks-2021-01-13_17_1T-HiRwoo9NtkjBaXWII-A.jsonlz4 filename.
NOTE: You can delete JSONLZ4 files if they become too numerous and large, but you will lose information regarding your user profile.
How do I open a JSONLZ4 file?
JSONLZ4 files are not meant to be manually opened. Instead, they are referenced by Firefox to load user profile settings. However, you can restore JSONLZ4 bookmark backup files in Firefox by following these directions:
- Click the Library icon (appears as books) in the toolbar (you can also select Bookmarks → Show All Bookmarks from the Firefox menu in macOS then skip to step 3).
- Select Bookmarks → Show All Bookmarks.
- Click the Import and Backup icon (appears as up and down arrows), then select Restore → Choose File....
- Navigate to the JSONLZ4 file you want to restore then click .
NOTE: If you need to edit a JSONLZ4 file, you can use Firefox with the 'mozlz4-edit' add-on installed. You can also open and convert JSONLZ4 files with the Firefox Bookmark Backup Reader/Decompressor online program.
Open over 400 file formats with File Viewer Plus.Programs that open JSONLZ4 files
Convert Jsonlz4 To Html Firefox
Did your computer fail to open a JSONLZ4 file? We explain what JSONLZ4 files are and recommend software that we know can open or convert your files.
What is a JSONLZ4 file?
JSONLZ4 files are Mozilla JSON compressed bookmark files, which you can read more about below.
The JSONLZ4 file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a JSONLZ4 opener may not be able to open all kinds of JSONLZ4 files. In this case, though, we only know of one specific use.
Mozilla JSON compressed bookmark
Through our analysis of JSONLZ4 files, we know that one use of the format is Mozilla JSON compressed bookmark. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.
We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!Jsonlz4 File
Not sure exactly what type of file you are trying to open? Try our new File Analyzer. It is a free tool that can identify more than 11,000 different kinds of files - most likely yours too! It will help you find software that can handle your specific type of file. Download File Analyzer here.