當Firefox在預期以外的情況下關閉代表一個「程式崩潰」發生了。在Firefox程式崩潰之後，Mozilla當機回報員(Mozilla Crash Reporter) 會出現，向您詢問是否要傳送程式崩潰技術上的細節給Mozilla處理。本文章將解釋該如何於support論壇中尋求關於您程式崩潰的協助並指引您至關於特定程式崩潰症狀的文章。

＊如果Firefox仍在運行但沒有回應，請參考下列文章：Firefox 當掉或停止回應 - 如何修理 （Firefox當掉了）。

尋求關於您程式崩潰的協助

被Mozilla處理的程式崩潰報告會被賦予一個往往代表了造成程式崩潰的原因的「程式崩潰特徵(crash signature)」。因為造成程式崩潰的可能原因太多了，獲取協助的最好方式是將您的「程式崩潰特徵(crash signature)」發表在討論區或是線上聊天室中。

1. 使用Firefox的位置列進到""about:crashes頁面。一個列出您先前送出的程式崩潰報告(crash report)的頁面會出現。
   • 如果您無法啟動Firefox，請參閱下列文章： Firefox crashes when you open it（Firefox在啟動時程式崩潰）。
2. Click on the latest crash under Report ID.
   
   
   
3. You will be taken to a page on crash-stats.mozilla.com, saying that "Your report is being processed". When it is finished processing your report, the crash signature will appear under the ID. (e.g. nsCrasher::Crash())
   
   
   
4. In the top right corner of the page, click on Search Mozilla Support for Help to search for Support articles that match the crash signature.
   
   
   

When you go to ask a question about your crash, it's important to provide your crash signature in the forum topic or live chat question. That way, our volunteers will be able to provide help that is specific to your circumstances and you can get help much faster.

Generic crash articles

If you are uncomfortable trying to find your crash signature, try one of the below articles for specific crash symptoms:

Firefox crashes when you open it

• If you are unable to load Firefox at all, please see Firefox crashes when you open it.

Firefox crashes when loading certain pages

• If you get the crash window when trying to browse certain pages but Firefox can work fine on other pages, please see Firefox 發生錯誤 - 疑難排解，避免再次發生錯誤並取得協助.

Firefox crashes when trying to download a file

• If you get the crash window when trying to download files or certain file types (e.g. images), please see Firefox crashes when downloaded files are checked by virus scan.

Firefox crashes when you exit it

• If you get the crash window only when trying to close Firefox and Firefox fails to shut down properly, please see Firefox crashes when you exit it.

If none of the above applies to you

The following causes of crashes apply to many crash situations:

Not using the latest version of Firefox

Firefox updates are regularly released and a number of the fixes are crash related. Make sure you are using the latest version. See 更新 Firefox 至最新版本 for details.

Problematic or out of date extensions or themes

Extensions and themes can often cause crashes and other errors. This is especially true if you recently installed or updated an extension. Follow the steps in the 解決擴充套件、佈景主題以及硬體加速造成的 Firefox 常見問題 article to determine whether an extension or theme is causing your problem. The support articles for various specific symptoms of Firefox crashes include lists of extensions that may cause certain crashes.

Problematic or out of date plugins

Plugins are programs that let Firefox display video and sound and do other things. If you find that certain, specific pages cause Firefox to crash every time you visit them, they may need a common plugin. Follow the steps at the 外掛程式問題排解 article to determine whether a plugin is causing your problem.

Based on information from Firefox crashes (mozillaZine KB)