I could not close a page

[Clipper]

I had an ad for some sort of women's wrinkle cream and eye serum pop up. It would not let me exit the page. I had to completely shut down and restart the computer. I ran C Cleaner and Malwarebytes and got rid of it in my history screen, but what caused it to lock on and not let me exit by clicking on the red X to close the page?

[dave]

Don't know. That's what some of them do. It's good that you ran Malwarebytes. CC Cleaner is good too.
I've also been running Spybot lately. All of these are free or have free versions. Spybot sometimes will catch something my ordinarily terrific pay-for Kaspersky won't.

[clarencebunsen]

I've seen the same thing more frequently lately. If you don't want to do a complete shutdown, try Ctrl/Alt/Del and start Taskmaster. You should then be able to just shut down the browser. That way if you also have a document open you don't have to worry about losing unsaved work. I suppose with a little cleverness one could go to Processes on Taskmaster and shut down just the dialog box. That usually seems to be what is keeping the pop up window open.

[Deleted]

I have had that happen to me. Once I had a page that constantly reloaded itself. Must have had 50 tabs open. I did that ctrl/alt/delete thing to get rid of it.

[Clipper]

That's precisely what happened to me Alan. Every time I closed it, another tab would be added to the bar at the top of the page. Thanks for the advice everyone. From now on I will use the Control/alt/delete thing.

[dave]

LATER: Control+Alt+F4 no longer works as described below. I don't know when that changed. Anyway, I just experimented here on my home PC and found the following:
ALT+F4 closes without shut down routine.
Control+F4 asks if you want to save, etc.
Plain old F4 gives you a list of selections.
For rapid shutdown of multiple open applications you can hold the ALT key down and continually tap the F4 key

And to repeat:
Here's a table of quite a few keyboard shortcuts.
en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

Yesterday:
Control+Alt+F4 will instantly closes the selected application (called the foreground application.) Be aware this technique skips the normal closing sequences of asking you if you want to save anything, etc.
In fact, a fast way to shut down the PC is to hold down Control+Alt while continually tapping F4 (for each application that's running.)
(Check me on the above and try it. For some reason I'm getting slightly different results on the computer I'm on this afternoon. I'm not on my home PC or laptop.)

Here's a table of quite a few keyboard shortcuts.
en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

[Ralph]

Some ads will do that Clipper, though with Avast I haven't had one in a very long time.

If it happens again do the Control/Alt/Delete routine to open your Task Manager, click on the Processes tab, and scroll down to find firefox.exe ^*32, highlight that process and then go down to click on End Process.  It will ask if you want to and just click End Process in the box and it will close out the browser.

Good thinking to do the Malwarebytes scan as well.