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.

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

Why does Firefox block certain pages?

  • 3 replies
  • 25 have this problem
  • 13 views
  • Last reply by kmc6064

more options

On many occasions, I click on a website and get a grey bar with a red x across the top of a blank page that says "Firefox won't allow page," or "Firefox has redirected this page," but nothing happens. Why is Firefox blocking these pages and what can I do short of going to IE to stop it?

On many occasions, I click on a website and get a grey bar with a red x across the top of a blank page that says "Firefox won't allow page," or "Firefox has redirected this page," but nothing happens. Why is Firefox blocking these pages and what can I do short of going to IE to stop it?

All Replies (3)

more options

Please provide a screenshot of a page where that happens.
https://support.mozilla.com/en-US/kb/Adding+screenshots

If that is a feature in Firefox, I have never seen it. But I suspect that is caused by a security or "control" program installed on that PC, or by a Firefox add-on, or something installed on your network - Firewall, Router, or server.

more options

See:

See also:

more options

On a Mac, Click on Firefox Preferences. Click on Advanced, then General and clear the box: Warn me when web sites try to redirect or reload the page.

Modified by kmc6064