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.

Search Support

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.

Learn More

Refresh after Windows10 looks like old Firefox; all FF pages look "safe mode" and other issues.

  • 4 replies
  • 2 have this problem
  • 3 views
  • Last reply by ErnaSheree

more options

Hello,

I recently downloaded Windows 10 and noticed FF going really slow. So somehow I refreshed it. I knew it would erase certain bits of data, but I am now unable to reset things.

It looks like an older version. When I go to any FF page, everything appears in a list. I can't choose a new theme, for example, b/c the Mozilla page can't show graphics. Also, I'm typing this in Chrome b/c there's no text box when I open this page in FF. I do not want to go back to Chrome.

Thank you!

Hello, I recently downloaded Windows 10 and noticed FF going really slow. So somehow I refreshed it. I knew it would erase certain bits of data, but I am now unable to reset things. It looks like an older version. When I go to any FF page, everything appears in a list. I can't choose a new theme, for example, b/c the Mozilla page can't show graphics. Also, I'm typing this in Chrome b/c there's no text box when I open this page in FF. I do not want to go back to Chrome. Thank you!
Attached screenshots

Chosen solution

thanks, in this case please disable https scanning within avast, since it's known to cause various problems:

  1. Open the Avast dashboard on the affected system.
  2. Select Settings from the left sidebar menu.
  3. Switch to Active Protection.
  4. Click on Customize next to Web Shield.
  5. Uncheck the "Enable HTTPS Scanning" option and click ok.

http://www.ghacks.net/2014/10/31/avasts-https-scanning-interferes-with-firefox-and-other-programs/

Read this answer in context 👍 1

All Replies (4)

more options

hi ErnaSheree, what security software are you using on that system?

more options

The free version of Avast.

more options

Chosen Solution

thanks, in this case please disable https scanning within avast, since it's known to cause various problems:

  1. Open the Avast dashboard on the affected system.
  2. Select Settings from the left sidebar menu.
  3. Switch to Active Protection.
  4. Click on Customize next to Web Shield.
  5. Uncheck the "Enable HTTPS Scanning" option and click ok.

http://www.ghacks.net/2014/10/31/avasts-https-scanning-interferes-with-firefox-and-other-programs/

more options

That fixed it. I would never have figured that out. Thanks so much!

Modified by ErnaSheree