This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

USPS issue

more options

I can log in to USPS but when Firefox sends a request to the USPS server, I get a BAD REQUEST return. See image.

I did not have this problem up until about a month ago.

Currently running the latest update of Firefox.

Thank you

I can log in to USPS but when Firefox sends a request to the USPS server, I get a BAD REQUEST return. See image. I did not have this problem up until about a month ago. Currently running the latest update of Firefox. Thank you
Aangehegde skermkiekies

All Replies (3)

more options

Also, the USPS really doesn't like VPN's

more options

Addons...image

Addons have not changed before this began occurring. USPS is the only server that I regularly use that has this issue.

I don't use a VPN service, our internet is too slow as it is.

Thank you

more options

Dropa said

Disable all of them and try agian. I never had issue just going to USPS. I think your blocker are the issue here.

I agree.

You may need to disable them and restart Firefox - similar to Troubleshooting Mode