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Cannot Login with Firefox Private Tab anymore

PostPosted: Thu Aug 15, 2019 6:20 am
by mbeh116
Hey guys,

First of all: I have not changed my settings or installed an update. I'm using 2-F-Auth and (also because of that) I'm pretty sure that nobody hacked my LP account ;-) The PW is correct (I can log in via Chrome) and yes, I've already turned the PC off and on again in the meantime :D

Yesterday I realized that I can't login with my Firefox browser anymore - neither with the extension tray nor via the login page of the extension. When I start the browser I get the question if LP is allowed to track my tabs - fair enough - accepted. But still I can't log in. What is going on here? Is Lastpass now only available for those of us who provide all their data (including those unnecessary for the program)?

Best
mb

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Thu Aug 15, 2019 3:23 pm
by peacekeeper
I have the same problem. I have Firefox set to always run in private browsing mode. The latest release of the browser extension (4.31.2.3) for firefox now breaks completely. I can't log into lastpass.

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Thu Aug 15, 2019 5:32 pm
by Badja
I have the same problem. I use Firefox in Private mode as default - why would you do anything else?
To login to LastPass go to lastpass.com and login there. I use a YubiKey for 2FA, and I notice quite a delay before my YubiKey code is accepted, but gets there eventually.

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Thu Aug 15, 2019 5:50 pm
by tutshi175
Thanks Badja, I went to lastpass.com and was able to login fine.

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Thu Aug 15, 2019 9:16 pm
by jc2645
I have the same issue as of August 15th 2019.

Extension version: 4.31.2.3

FF Version: 68.0.2

Windows 10 (1903).

I use FF in Private mode by default, I turned it off as an experiment, and it still does not let me log in.

Like others here, I use 2FA, but never get the prompt for it.

I have successfully been able to log in via the web site with the same FF browser (with 2FA), so it should work, but the extension is somehow broken.

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Thu Aug 15, 2019 11:07 pm
by siege801
Adding a +1 to this issue. I launch Firefox, click on the extension and am shown a permission request page. I accept these and then attempt to login. Once I've entered my username and password I see a red spinning circle that doesn't progress to the 2fa prompt. I can successfully log in via the website, but this is a tedious workaround.

Has anyone from LastPass seen / acknowledged this issue?

Note that the guys on this post seem to have the same issue:

viewtopic.php?f=12&t=342085&p=1144195&hilit=cannot+log+in+firefox#p1144195

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Thu Aug 15, 2019 11:39 pm
by Badja
A work around - almost.
I've still been able to login via lastpass.com, but this time it took 3 attempts for the login to give me the red square on my browser meaning I could actually use Lastpass. The previous logins gave me access to my vault, but not auto-fill from Firefox.
If you find that logging into lastpass.com doesn't work, just keep trying. It worked for me eventually.

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Fri Aug 16, 2019 11:45 pm
by jc2645
As a work around, you can revert to the previous version of the extension.

Just uninstall the extension, then add the previous version (4.29.0.4) from here:
https://addons.mozilla.org/en-US/firefo ... /versions/

It actually still works for 2FA.

NOTE: this issue is happening in non-private mode Firefox as well, so it looks like the extension is completely broken for 2FA users.

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Sat Aug 17, 2019 4:32 am
by siege801
Thanks @jc2645!

Confirmed, rolling back to the second to latest version fixes the 2fa login. Looking forward to an update coming out soon to fix this.

Re: Cannot Login with Firefox Private Tab anymore

PostPosted: Sat Aug 17, 2019 11:53 am
by doodad54
Thanks to jc2645! The latest version was the problem..