Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

how to uninstall new updates and go back to 38.0.5

  • 1 个回答
  • 3 人有此问题
  • 5 次查看
  • 最后回复者为 Scribe

more options

Have a MAC and can not get into my workstation with new updates. Need to uninstall 39.0 and go back to version 38.0.5. Please give instructions on how to get older version back.

Have a MAC and can not get into my workstation with new updates. Need to uninstall 39.0 and go back to version 38.0.5. Please give instructions on how to get older version back.

所有回复 (1)

more options

Hi, using an older version is not recommended because it may compromise your security, however if you really wish to do it please see - Install an older version of Firefox.

If your question is resolved by this or another answer, please take a minute to let us know. Thank you.