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I cannot find built-in PDF viewer in Firefox 60.7.0esr (32-bit)

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My Firefox browser on Windows 10 stops showing embedded PDF files. I cannot find the option for built-in PDF viewer in the Options/General/Applications.

My Firefox browser on Windows 10 stops showing embedded PDF files. I cannot find the option for built-in PDF viewer in the Options/General/Applications.
附加的畫面擷圖

被選擇的解決方法

Is the builtin PDF Viewer enabled ?

You can check þis pref on the about:config page.

  • pdfjs.disabled = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.


從原來的回覆中察看解決方案 1
引用

額外的系統細節

已安裝的外掛程式

  • Shockwave Flash 32.0 r0

應用程式

  • User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Firefox/60.0

更多資訊

cor-el
  • Top 10 Contributor
  • Moderator
17273 個解決方法 156143 個答案

選擇的解決方法

Is the builtin PDF Viewer enabled ?

You can check þis pref on the about:config page.

  • pdfjs.disabled = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.


Is the builtin PDF Viewer enabled ? You can check þis pref on the <b>about:config</b> page. *pdfjs.disabled = false You can open the <b>about:config</b> page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue. *http://kb.mozillazine.org/about:config ---- *https://support.mozilla.org/en-US/kb/view-pdf-files-firefox *https://support.mozilla.org/en-US/kb/disable-built-pdf-viewer-and-use-another-viewer
這篇文章有幫助嗎? 1
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jscher2000
  • Top 10 Contributor
8509 個解決方法 69508 個答案

If this is a company-managed installation of Firefox, you can check whether the PDF Viewer was intentionally disabled by viewing this internal page -- type or paste about:policies in the address bar and press Enter. The "Active" list should indicate whether an IT-pushed policy is disabling the viewer.

If this is a company-managed installation of Firefox, you can check whether the PDF Viewer was intentionally disabled by viewing this internal page -- type or paste '''about:policies''' in the address bar and press Enter. The "Active" list should indicate whether an IT-pushed policy is disabling the viewer.
這篇文章有幫助嗎?
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cor-el
  • Top 10 Contributor
  • Moderator
17273 個解決方法 156143 個答案

有幫助的回覆

Note that about:policies is only supported in Firefox 63+ and not in Firefox 60 ESR.

Note that about:policies is only supported in Firefox 63+ and not in Firefox 60 ESR.
這篇文章有幫助嗎? 1
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