This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Sync does not sync all extensions and their data between PC(windows) and Mac(Monterey 12)

  • 6 replies
  • 1 has this problem
  • 2 views
  • Last reply by cor-el

more options

Hi , My main machine is a personal windows laptop. Firefox sync works fine and syncs all things including "all" my installed extensions . recently company issues me a macbook and on it when i install firefox and login my account for sync it syncs other things like bookmarks but does not sync all my extensions only a few of them.

I already tried multiple things like sync delibrately from windows and then pressing sync on mac or reinstalling firefox on mac . but its the same issue.

few of the extensions that are missing :

  1. Auto Tab Discard
  2. Download Manager (S3)
  3. DownthemAll
  4. Stylus ( very important for me)
  5. Tab Session Manager (THE most important for me)
  6. TamperMonkey ( Important)
  7. (Temporary Containers)
  8. uBlock Origin
  9. Xkit Rewritten
  10. Zoom Image
Hi , My main machine is a personal windows laptop. Firefox sync works fine and syncs all things including "all" my installed extensions . recently company issues me a macbook and on it when i install firefox and login my account for sync it syncs other things like bookmarks but does not sync all my extensions only a few of them. I already tried multiple things like sync delibrately from windows and then pressing sync on mac or reinstalling firefox on mac . but its the same issue. few of the extensions that are missing : # Auto Tab Discard # Download Manager (S3) # DownthemAll # Stylus ( very important for me) # Tab Session Manager (THE most important for me) # TamperMonkey ( Important) # (Temporary Containers) # uBlock Origin # Xkit Rewritten # Zoom Image

All Replies (6)

more options

It is possible that you exceed the maximum quota for syncing extension data.

You can open about:sync-log via the location bar to see if recent Sync logs are available. You can upload the file to a website like Pastebin if you can't post the content of the file in a reply.

You can install the About Sync extension in Firefox 72 and newer on desktop to check what data is stored on the Sync server via the about:sync page provided by this extension.

Close and restart Firefox to access the about:sync page added by this extension (see the about:about page for possible about pages).

more options

Hi @cor-el ,

thank you for the reply. I checked the about:sync-log and there a bunch of error logs : i have pasted one of the logs here : https://pastebin.com/Ufz7JqcU

also I installed about-sync and from the page in Addons section I can clearly see that there is an error. the server only has 14 records where as the client has around 53. In the validation tab it says: ``` serverMissing: 23 problems

The following records appear on the client but not on the server. ``` under the "engine actions" tab I see there is a "reset addons" button. the description says "Resetting an engine clears all local state, so the next Sync will act as though this was the first sync for that engine's data - all records will be downloaded, compared against local records and missing records uploaded "

is this safe, will this solve my issue.

Hoping that you will reply and help me solve this issue. thank you :)

more options

Hi

I can't inspect the log because Pastebin blocked it, so could you please give it another try ?

more options

Hi, here is the latest log . its a success log btw.

https://pastesite.org/view/d349c64c

and older error log (dated 16-05-22) : https://pastesite.org/view/737398ee

more options

Hi @cor-el , Hoping you can take some time to help me with this issue thank you

more options

I'm not seeing that much issues in the log, but I notice you have quite a few extensions, so it is possible you exceed the quota for this engine (it looks that Adblock Plus is already declined).

1652725891617	Sync.Declined	DEBUG	Handling remote declined: ["adblockplus"]
1652725891617	Sync.Declined	DEBUG	Handling local declined: ["adblockplus"]