Do You Sign In To Firefox To Sync With Other Devices?


Stigg

Stigg

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I have a few computers and a phone that all have Firefox installed as my main browser.

Years ago, I decided to sign in to Firefox on my desktop to sync it with my laptop. But something went wrong, and it synced the wrong way, and I lost numerous Bookmarks. Also, some settings synced the wrong way other than what I intended to happen. These days, I also have a phone with Firefox as my main browser. I haven't yet signed in to Firefox on any of these devices for fear of more problems. What makes things more confusing is that I have two Mozilla accounts, but I don't know what data is on either account.

Do you have any thoughts, ideas or suggestions on syncing Firefox across multiple devices?
 

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Stigg said:
I have a few computers and a phone that all have Firefox installed as my main browser.

Years ago, I decided to sign in to Firefox on my desktop to sync it with my laptop. But something went wrong, and it synced the wrong way, and I lost numerous Bookmarks. Also, some settings synced the wrong way other than what I intended to happen. These days, I also have a phone with Firefox as my main browser. I haven't yet signed in to Firefox on any of these devices for fear of more problems. What makes things more confusing is that I have two Mozilla accounts, but I don't know what data is on either account.

Do you have any thoughts, ideas or suggestions on syncing Firefox across multiple devices?
Click to expand...
If you can sign into both accounts, you can sync both accounts. You should then be able to delete one of the accounts.

How to Combine Data from Two Accounts
    • Open your first account: Start Firefox and sign in to your first Mozilla account to download all of its synced data (bookmarks, passwords, and history) onto your local computer. [1, 2]
    • Switch accounts: Log out of that account in Firefox settings. [1]
    • Merge local data: Sign in to your second Mozilla account. When prompted, choose to merge the local data with the data coming from the second account's sync server. [1, 2, 3]
    • Allow sync to finish: Wait for Firefox to fully upload the combined dataset back to the second account's cloud storage. [1]
    • Delete the old account: Once everything is safely combined into one account, you can delete the extra account you no longer need. [1]
 

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Stigg said:
a phone with Firefox as my main browser. I haven't yet signed in to Firefox on any of these devices for fear of more problems. What makes things more confusing is that I have two Mozilla accounts, but I don't know what data is on either account.
Click to expand...

I sync Firefox between my PC and Macbook Pro. I have not had any issues.
 

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Same, been syncing on 2 versions of FF on 3 versions of Windows Insiders and Android for over 2 years.
I don't recall having issues.
 

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Firefox Sync 01.webp
Firefox Sync 02.webp
 

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    Windows 11 ProIntel Core i9-10900XCorsair 64 GB (4 x 16 GB) CMW64GX4M4C3000C15 ...GIGABYTE GeForce GTX 1660 Super Mini ITX 6 GB OC
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    Intel Core i9-10900X
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    GIGABYTE X299X DESIGNARE 10G
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    Graphics Card(s)
    GIGABYTE GeForce GTX 1660 Super Mini ITX 6 GB OC
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    Realtek ALC1220
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    Samsung 27" FHD LED FreeSync Gaming Monitor (LS27F350FHEXXY)
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    1920 x 1080
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    Samsung 970 Pro Series 1TB M.2 2280 NVMe SSD
    Western Digital Red Pro WD8003FFBX-68B9AN0 8 TB, 7200 RPM, SATA-III
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    ASUS ROG Zephyrus M GM501GS
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    SK Hynix 32 GB (2 x 16 GB) HMA82GS6CJR8N-VK 16 GB DDR4-2666 DDR4 SDRAM
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I sync all three computers.
 

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    Windows 11 Home 26H2 26300.9818
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    HP Pavilion TP01-2xxx
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    AMD Ryzen 3 5300G
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    8gb
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    ViewSonic
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    FireFox
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  • HP Omni laptop Windows 11 home
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Stigg said:
View attachment 182911
Click to expand...
You can't undo the sync but you can always:

Delete data from:
Code: 
%appdata%\local\Mozilla\Firefox\Profiles
(Separate folders for nightly & Release version and a default one to reset)

It's true that Edge is better (in this case) as it has a way to 'recall' the current data from MS servers or write the data back at will.
 

My Computers My Computers

System One System Two

  • At a glance

    All Branches but StableAMD Ryzen 7 7735HS 3200-4500 Mhz 8 cores x 232 GB DDR5Radeon Graphic / NVIDIA GeForce RTX 4060 8 GB...
    OS
    All Branches but Stable
    Computer type
    Laptop
    Manufacturer/Model
    Acer Nitro ANV15-51
    CPU
    AMD Ryzen 7 7735HS 3200-4500 Mhz 8 cores x 2
    Motherboard
    Sportage_RBH
    Memory
    32 GB DDR5
    Graphics Card(s)
    Radeon Graphic / NVIDIA GeForce RTX 4060 8 GB GDDR6
    Sound Card
    AMD/Realtek(R) Audio
    Monitor(s) Displays
    Integrated Monitor (15.3"vis)
    Screen Resolution
    FHD 1920X1080 16:9 144Hz
    Hard Drives
    KINGSTON OM8SEP4512Q-AA 1TB
    Western Digital 256GB
    PSU
    19V DC 6.32 A 120 W
    Cooling
    Dual Fans
    Mouse
    MS Bluetooth
    Internet Speed
    Fiber 1GB Cox -us & 1GB Orange-fr
    Browser
    Edge Canary- Firefox Nightly-Chrome Dev-Chrome Dev
    Antivirus
    Windows Defender

  • At a glance

    Windows 11 BetaAMD A9-94208 GB of DDR4AMD Radeon R5
    Operating System
    Windows 11 Beta
    Computer type
    Laptop
    Manufacturer/Model
    Asus X751BP
    CPU
    AMD A9-9420
    Memory
    8 GB of DDR4
    Graphics card(s)
    AMD Radeon R5
    Screen Resolution
    1600x900
    Hard Drives
    Seagate 1 TB
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