Is there a way to merge the bookmarks on my old pc to those on my new pc? (PS: I cannot login to old pc using old profile but can access the profiles folder.)

Question

My user profile on my old laptop became corrupted and I cannot log into it using my regular (admin) account. I would like to add and merge the old firefox bookmarks to another laptop, which already has existing bookmarks. I cannot simply copy and paste the profile folder as this would overwrite my existing bookmarks and settings. Unfortunately I did not set up the Sync feature on that browser.

Answer 1

I assumed you knew, but I should specify, that you are looking for the most recent backup in your old profile's '''bookmarkbackups''' folder. The format changed recently, so the extension might be either .json or .jsonlz4 which is a compressed format so it may be much smaller than earlier backups. Firefox includes a count of the number of bookmarks in the file name (after the date).