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Gmail OAuth2.0 fails due to browser outdated notification.

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  • 6 zinale nkinga
  • 26 views
  • Igcine ukuphendulwa ngu Hendrix

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Hi everyone,

Google seems to have a problem with the Thunderbird embedded browser.

I have seen this problem with Google's desire to over compensate for all the dummies in the world already so often, to this extend, it becomes really annoying.

I have added several Gmail accounts to my Thunderbird (always latest version) 102.1.0 at the moment. This went ok after I had the cookies on accepting.

But today I get the problem that Google has decided that the embedded browser in Thunderbird is outdated. So there is no way to verify or receive the OAuth2 token needed, to add another email account.

The login window appears, credentials can be entered but after entering the password and clicking the login button, it logs you actually in but redirects to a window that shows you a message your browser is outdated and no link on the page will work.

I have seen this in the search results only once with someone using stacks, but that is not my expertise and I have no idea on even how to copy the url from the embedded browser because it is simply not possible / selectable.

In detail: I do get a login confirmation on my phone while inserting the correct password, but instead of the adding of the email account into Thunderbird, Thunderbird hangs on verifying the password and the google window changes to a "browser is outdated" window, I am logged in however, but no link is working except log out, logging in again in the same window works but then after retrying to add the account, Thunderbird tells me the server is already existing and it will keep doing that until I close the (embedded) browser window where I am logged in.

I read in the stack post from someone else with this OAuth2.0 problem who had the same experience, that this is caused by the (thunderbird?) embedded browser window being explorer or old safari based.

Is Thunderbird (Mozilla) coming with an update to solve this, or is there a workaround for a button pusher like me??

Some string I can change in the config?? (with navigation instructions please).

Any help would be appreciated

Hi everyone, Google seems to have a problem with the Thunderbird embedded browser. I have seen this problem with Google's desire to over compensate for all the dummies in the world already so often, to this extend, it becomes really annoying. I have added several Gmail accounts to my Thunderbird (always latest version) 102.1.0 at the moment. This went ok after I had the cookies on accepting. But today I get the problem that Google has decided that the embedded browser in Thunderbird is outdated. So there is no way to verify or receive the OAuth2 token needed, to add another email account. The login window appears, credentials can be entered but after entering the password and clicking the login button, it logs you actually in but redirects to a window that shows you a message your browser is outdated and no link on the page will work. I have seen this in the search results only once with someone using stacks, but that is not my expertise and I have no idea on even how to copy the url from the embedded browser because it is simply not possible / selectable. In detail: I do get a login confirmation on my phone while inserting the correct password, but instead of the adding of the email account into Thunderbird, Thunderbird hangs on verifying the password and the google window changes to a "browser is outdated" window, I am logged in however, but no link is working except log out, logging in again in the same window works but then after retrying to add the account, Thunderbird tells me the server is already existing and it will keep doing that until I close the (embedded) browser window where I am logged in. I read in the stack post from someone else with this OAuth2.0 problem who had the same experience, that this is caused by the (thunderbird?) embedded browser window being explorer or old safari based. Is Thunderbird (Mozilla) coming with an update to solve this, or is there a workaround for a button pusher like me?? Some string I can change in the config?? (with navigation instructions please). Any help would be appreciated

Okulungisiwe ngu Hendrix

Isisombululo esikhethiwe

Found it..... at google.. %@$€@$£$€%¤#&#¤%€@£%@%


Add the correspond boolean value in config editor and set it to true general.useragent.compatMode.firefox set to true and click ok

Funda le mpendulo ngokuhambisana nalesi sihloko 👍 12

All Replies (2)

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The screenshots to clarify the error.

Logging out is the only option in screenshot 2 Logging again in works, see screenshot 3

But this will cause Thunderbird to mention the incoming server already exists, when another addition of the account to Thunderbird is attempted, so this fails again.

I upgraded to the latest Thunderbird and when copying the Auth. Url and pasting them in Firefox, it returned bad request error 400 so evading the browser of Thunderbird is no use either..

I have no add-ons in Thunderbird. Win10. 21H2 build 19044.1826

Anyone?? please...

Okulungisiwe ngu Hendrix

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Isisombululo Esikhethiwe

Found it..... at google.. %@$€@$£$€%¤#&#¤%€@£%@%


Add the correspond boolean value in config editor and set it to true general.useragent.compatMode.firefox set to true and click ok