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

Cannot open PDF's in new update

  • 2 个回答
  • 1 人有此问题
  • 9 次查看
  • 最后回复者为 cor-el

more options

Mac OS snow leopard, firefox 36.01...Since the latest update, my pdf downloads try to open as "cgi" files, and then won't open if i say preview.. I checked "extensions" and have none. i looked at my "preferences / applications / file" is already set to "preview"

my current workaround is to use chrome.

Mac OS snow leopard, firefox 36.01...Since the latest update, my pdf downloads try to open as "cgi" files, and then won't open if i say preview.. I checked "extensions" and have none. i looked at my "preferences / applications / file" is already set to "preview" my current workaround is to use chrome.

所有回复 (2)

more options
more options

If files get saved with the wrong file extension then you will have to rename them and add the correct file extension, in this case .pdf, yourself to make the file work properly if you double-click the file.

You can try to rename (or delete) the mimeTypes.rdf file in the Firefox profile folder to reset all file actions.


Clear the cache and remove cookies only from websites that cause problems.

"Clear the Cache":

  • Firefox > Preferences > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox > Preferences > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"