Hi To sync your Firefox data between your PCs, you can use the built-in feature called '''Firefox Sync'''. * [https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer#:~:text=Sign%20in%20or%20create%20an%20account%20to%20start%20Sync,-Click Sign in or create] an Mozilla account to start Sync '''on your main computer''' to upload your current data. * After Sync is enabled and your data is stored in your account, you just need to add your other computer/device. You can choose [https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer#:~:text=Choose%20what%20to%20sync,-After which items] you want to sync and [https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer#:~:text=Connect%20additional%20devices%20to%20Sync,-A Connect additional devices to Sync] More info [[Sync Firefox data]] [[How do I set up Sync on my computer?]] [[How do I choose what information to sync on Firefox?]]