We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Gmail "error 400"

emzerr
emzerr
more options

Hello, my name is Eldon Zerr. I have been using my gmail email through mozzila and thunderbird for many years. But suddenly it is not letting me log into my gmail through Mozilla and is giving me an "error 400" . I can get all my emails on the iphone, but not my Mac in the office. Can you [please help me get back up and running? Thank you, Eldon

Hello, my name is Eldon Zerr. I have been using my gmail email through mozzila and thunderbird for many years. But suddenly it is not letting me log into my gmail through Mozilla and is giving me an "error 400" . I can get all my emails on the iphone, but not my Mac in the office. Can you [please help me get back up and running? Thank you, Eldon

Réiteach roghnaithe

Did you recently get a VPN?

Read this answer in context 👍 1

All Replies (4)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

Réiteach Roghnaithe

Did you recently get a VPN?

Gale Lurie
Gale Lurie
more options

I did not get a VPN recently. I've had one for 2 or 3 years. This just happened one day. It just said that "The server could not process the request because it is malformed. It should not be retried. That is all we know." It is on a windows 10 DELL laptop.

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

Disable your VPN. do you still get the error?

Grzegorz Wyłupek
Grzegorz Wyłupek
more options

You need to enable cookies in your Thunderbird (Privacy & Security settings) Probably it will be enough to store it for accounts.google.com