搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

Learn More

403 error Firefox only

  • 8 个回答
  • 4 人有此问题
  • 130 次查看
  • 最后回复者为 cor-el

more options

I am running Firefox 118.0.2 64 bit on windows 10 22H2. For one particular website I get a 403 error on Firefox, the site opens normally on Edge. I do not have any add ons or extensions that block websites. I have cleared cache and cookies and tried to open the site in troubleshooting mode, no luck. I have also disabled BitDefender, same results. Any suggestions are appreciated.

I am running Firefox 118.0.2 64 bit on windows 10 22H2. For one particular website I get a 403 error on Firefox, the site opens normally on Edge. I do not have any add ons or extensions that block websites. I have cleared cache and cookies and tried to open the site in troubleshooting mode, no luck. I have also disabled BitDefender, same results. Any suggestions are appreciated.

被采纳的解决方案

Based on your above reply, I tried with an Edge user agent in Firefox and that works, so it looks that they have a problem with the Firefox user agent. Further testing shows that this is likely a problem with the version in Firefox/xxx It works with Firefox/60.0 til Firefox/99.0 , but over 100.0 it fails. You can contact the website and ask them to update their browser sniffing code to support a three-digit Firefox version. This user agent works for me:

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/99.0

A similar question about the same user agent range :

定位到答案原位置 👍 0

所有回复 (8)

more options

Hi

What is the address of the website that you are trying to view?

more options
more options

Hi

This does not appear to be an issue with Firefox. Looking at the website registration details, it appears that there was a change made to the website, possibly by the website admistrators, at 0743 (UTC time) today.

more options

I get the same error when trying to load the website. 0000 Fri Oct 13 UTC.

由Terry于修改

more options

Work around for my user is Edge. No idea what is up with the website. It does seem to have some certificate issues, no idea if that is part of the problem.

more options

选择的解决方案

Based on your above reply, I tried with an Edge user agent in Firefox and that works, so it looks that they have a problem with the Firefox user agent. Further testing shows that this is likely a problem with the version in Firefox/xxx It works with Firefox/60.0 til Firefox/99.0 , but over 100.0 it fails. You can contact the website and ask them to update their browser sniffing code to support a three-digit Firefox version. This user agent works for me:

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/99.0

A similar question about the same user agent range :

由cor-el于修改

more options
more options

^: Note that the "network.http.useragent.forceVersion" no longer is supported in 116+.

  • 1837343 - Remove the "network.http.useragent.forceVersion" pref [116]