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Firefox Sync password discrepancy between macOS and Windows?

Posted

Hi,

I'm using Firefox on a couple of Macs and Windows 10 machines for quite some time now. And I keep tabs and bookmarks in sync with Firefox Sync. Has been working great for quite some time.

Since somewhere last week, it started giving me headaches. It started with requiring me to log into sync again on one of the machines (can't quite remember wether it was Win10 or Mac). My password (complex 35 characters, managed by LastPass password manager) did not work. Que? OK, so I reset the password with a recovery key (2FA enabled) and was able to log in again.

Then another machine gave me exactly the same: log in again, password wrong, only way in was to reset password, etc.

It seems I can get either all macOS Firefoxes to sync -or- the Win10 Firefoxes to sync, but not both. I tried completely starting over with sync (deleting my account, setting it up from scratch). But still the same problem...

I'm at my wits end with this... Anyone else having this problem? Was not able to find a reference on google or the support forums ;-(.

I guess it started with Firefox 67.0 (which has an update as I check just now).

Any hints or help most welcome :-D

Best regards, Donald

Hi, I'm using Firefox on a couple of Macs and Windows 10 machines for quite some time now. And I keep tabs and bookmarks in sync with Firefox Sync. Has been working great for quite some time. Since somewhere last week, it started giving me headaches. It started with requiring me to log into sync again on one of the machines (can't quite remember wether it was Win10 or Mac). My password (complex 35 characters, managed by LastPass password manager) did not work. Que? OK, so I reset the password with a recovery key (2FA enabled) and was able to log in again. Then another machine gave me exactly the same: log in again, password wrong, only way in was to reset password, etc. It seems I can get either all macOS Firefoxes to sync -or- the Win10 Firefoxes to sync, but not both. I tried completely starting over with sync (deleting my account, setting it up from scratch). But still the same problem... I'm at my wits end with this... Anyone else having this problem? Was not able to find a reference on google or the support forums ;-(. I guess it started with Firefox 67.0 (which has an update as I check just now). Any hints or help most welcome :-D Best regards, Donald

Chosen solution

Update: it seems to be the LastPass plugin on macOS... I just had the notion to view the password copied from LastPass from Firefox by poking the eye icon: noticed the password looked different from the one in the LastPass vault ;-(. So instead of using the "copy password" dropdown I manually copied and pasted the password from the vault to the Firefox Sync login and presto: it worked.

So it seems it has nothing to do with Firefox after all...

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:67.0) Gecko/20100101 Firefox/67.0

More Information

Chosen Solution

Update: it seems to be the LastPass plugin on macOS... I just had the notion to view the password copied from LastPass from Firefox by poking the eye icon: noticed the password looked different from the one in the LastPass vault ;-(. So instead of using the "copy password" dropdown I manually copied and pasted the password from the vault to the Firefox Sync login and presto: it worked.

So it seems it has nothing to do with Firefox after all...

Update: it seems to be the LastPass plugin on macOS... I just had the notion to view the password copied from LastPass from Firefox by poking the eye icon: noticed the password looked different from the one in the LastPass vault ;-(. So instead of using the "copy password" dropdown I manually copied and pasted the password from the vault to the Firefox Sync login and presto: it worked. So it seems it has nothing to do with Firefox after all...
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