Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ค้นหาฝ่ายสนับสนุน

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

เรียนรู้เพิ่มเติม

Firefox shuts down of its own accord when I haven't touched the pc for some time, usually overnight.

  • 4 การตอบกลับ
  • 1 คนมีปัญหานี้
  • 8 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย Spinky1001

more options

As above. When I restart Firefox it always opens in the same position on the monitor and the same size window even though that wasn't the last position/size as when I left it. This is not a crash, it just disappears.

As above. When I restart Firefox it always opens in the same position on the monitor and the same size window even though that wasn't the last position/size as when I left it. This is not a crash, it just disappears.

วิธีแก้ปัญหาที่เลือก

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

อ่านคำตอบนี้ในบริบท 👍 1

การตอบกลับทั้งหมด (4)

more options

วิธีแก้ปัญหาที่เลือก

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

more options

Do you have any security software scheduled to run at that time?

more options

Many thanks - left PC on overnight and Firefox still open so problem seems to be solved!

more options

No scheduled software to run overnight, just AVG running all time. Problem seems to be solved by resetting Firefox as above. Many thanks for interest!