搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

The keyboard shortcuts on the pull down menus are grayed out. So I cant use my keyboard to (for instance) open up a new tab. This is the case for all keyboard s

more options

The keyboard shortcuts on the pull down menus are grayed out. So I cant use my keyboard to (for instance) open up a new tab. This is the case for all keyboard s

The keyboard shortcuts on the pull down menus are grayed out. So I cant use my keyboard to (for instance) open up a new tab. This is the case for all keyboard s

所有回覆 (1)

more options

Mine appear in gray, too; I think that's just the style.

Does this problem occur on all pages? (If it only appears on YouTube or other pages with Flash players, it may be related to keystrokes being captured by the plugin.)


A standard diagnostic for possible interference by add-ons is to try Firefox's Safe Mode.

First, I recommend backing up your Firefox settings in case something goes wrong. See Back up and restore information in Firefox profiles. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

Next, restart Firefox in Firefox's Safe Mode (Diagnose Firefox issues using Troubleshoot Mode) using

Help > Restart with Add-ons Disabled

In the Safe Mode dialog, do not check any boxes, just click "Continue in Safe Mode."

If your keyboard shortcuts work correctly, this points to one of your add-ons or custom settings as the problem.

Any change?