Member Avatar for linhevermind

whenever i open more window in firefox, it gets some accident popups confused me so much. really hate them.but i do not know the causes. pls could anybody here tell me if you once got this problem. many thanks!

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  • Latest Post Latest Post by Deep Modi

Dani AI

Generated

Random pop‑ups when opening extra Firefox windows can be either web pages deliberately spawning ads or a system/browser compromise that injects advertisements. The posts from and point to the right first questions: a screenshot and whether other browsers on the same machine show the same behaviour help decide if this is Firefox-only (profile/extension) or system/router‑level ad injection.

A practical diagnostic checklist:

  • Reproduce the popup and capture a screenshot with the address bar visible (URL and whether the popup is inside a tab or a separate window).
  • Test a private window and start Firefox in Troubleshoot Mode (extensions disabled) to see if the behaviour stops — see Mozilla’s Troubleshoot Mode instructions (Troubleshoot Mode).
  • Create or switch to a clean profile (about:profiles) to rule out profile corruption.
  • Inspect the Firefox shortcut target for appended URLs/parameters, and check whether popups occur on other browsers or other devices on the same network (to detect router/DNS injection).

Remediation and safety notes:

  • If the problem is extension/profile related, a profile reset can help; see Mozilla’s Refresh guidance (Refresh Firefox).
  • If popups persist when Firefox is closed or affect multiple browsers, treat as system‑level adware: boot to a clean environment and run a full anti‑malware scan with a reputable scanner (for example, Malwarebytes) before making configuration changes (Malwarebytes). Do not call phone numbers or follow instructions in scareware dialogs; kill the browser process and investigate from a safe system state.

For follow‑up debugging (so replies are actionable): include the popup text and URL, a screenshot with the address bar, the about:addons extension list, and a short list of recently installed programs or changes. This evidence points to targeted next steps rather than generic removals.

Recommended Answers

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Member Avatar for Assembly Guy

I'm afraid you'll need to explain more clearly before anyone can help you - maybe provide a screenshot of what these popups look like too.

Member Avatar for DavidB

Is Firefox the only browser you use on that computer? If you use Internet Explorer on the same computer, do the pop-ups NOT appear?

What other software are you using on that computer? Any free downloads?

Edited by DavidB
Member Avatar for gerbil

Get Adwcleaner from bleepingcomputer.com.
Delete all that it finds.

Member Avatar for Deep Modi

hahaha,
Delete all the cookies...
Uninstall all the Toolbar from uninstaller.
This is done as you install any application at the time thee may be the adv. for installing more than of your application that is checked and you just hit next without untick of it so that others toolbars, adv. app also get install and this result you in this so...
Uninstall all adv. app from Uninstaller (Browser must be close)
delete all cookies. (use Ccleaner)
Fix the Registry (Use Ccleaner)

I hope this works for you

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