Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How to Restore Firefox Bookmarks after upgrading MacBook from Mohave to Catalina 10.15.5

goodincathy
goodincathy
more options

I upgraded my macbook from Mojave to Catalina and all the Firefox Bookmarks disappeared. I then found a folder on the desktop labeled Old Firefox Data and I tried to restore by going to bookmarks, show all bookmarks, restore, choose file, and then adding in the bookmark backup file from the folder on the desktop (ends in jsonlz4). Unfortunately this didn't work. I would appreciate help....I have alot of bookmarks! Thank you!

I upgraded my macbook from Mojave to Catalina and all the Firefox Bookmarks disappeared. I then found a folder on the desktop labeled Old Firefox Data and I tried to restore by going to bookmarks, show all bookmarks, restore, choose file, and then adding in the bookmark backup file from the folder on the desktop (ends in jsonlz4). Unfortunately this didn't work. I would appreciate help....I have alot of bookmarks! Thank you!

All Replies (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Hi goodincathy, please ignore the fake support email address someone is spamming here. A genuine community support volunteer will reply in this thread. https://support.mozilla.org/questions/1289020

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Hi goodincathy, when you tried Restore --

I upgraded my macbook from Mojave to Catalina and all the Firefox Bookmarks disappeared. I then found a folder on the desktop labeled Old Firefox Data and I tried to restore by going to bookmarks, show all bookmarks, restore, choose file, and then adding in the bookmark backup file from the folder on the desktop (ends in jsonlz4). Unfortunately this didn't work.

-- did Firefox give you an error message? Or did it just seem to run forever without adding anything? How many items were in the backup file? That's usually coded into the name after the date. In this example, 521 bookmarks + folders + separators:

bookmarks-2020-05-24_521_gibberish==.jsonlz4