If the fan won't stop running or results take longer than 15 seconds, you can close the tab and launch the document again. Performance Note: Decompressing files and working with large sets of bookmarks is processor intensive, so please be patient. This file is not sent to the network, it is only read within this page in Firefox. If you are unfamiliar with how to locate your profile folder, please see: Profiles - Where Firefox stores your bookmarks, passwords and other user data on Mozilla Support. ( HELP) These files are stored in the bookmarkbackups folder in your Firefox profile folder.

Performance Note: Decompressing files and working with large sets of bookmarks is processor. json) bookmark backup file onto the empty text box, or use the Browse. Firefox creates frequent backups of your bookmarks. This tool can convert a backup file to the HTML export format. Automatic backups are compressed using Mozilla's flavor of LZ4 compression (.jsonlz4 file extension), while backups you create yourself (in the Library window) are not compressed (.json file extension by default). Firefox creates frequent backups of your bookmarks.

Where is firefox favorites folder