We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

I keep getting pop-up menu saying I chose to open rcp.html. What is it???

  • 1 cavab
  • 3 have this problem
  • 2 views
  • Last reply by cor-el

more options

It asks to save or open. I get this every time I return to the Comcast home page (which is my internet open).

If I save it, it returns. Why does it keep doing this, and why can't Firefox (whose document this is) tell me what it is. NOW!!!!!

It asks to save or open. I get this every time I return to the Comcast home page (which is my internet open). If I save it, it returns. Why does it keep doing this, and why can't Firefox (whose document this is) tell me what it is. NOW!!!!!

All Replies (1)

more options