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Windows 7: Firefox and Flash, popup message about plugin not responding

28 Aug 2016   #1
Judy in Texas

Windows 7 Professional 64 bit
Firefox and Flash, popup message about plugin not responding

Hi folks, I am just installing the things I want on the new computer and today I wanted to add the Flash player. As (I think) you can see, I have a HP z800, windows 7 64 bit. I also have an ssd as the C:\ drive.

On Firefox I installed Flash and in Firefox I have Flash set to ask to be allowed to run, just as I did on the computer I am moving from (Vista). However, two things seem to be happening now; 1) Flash always runs when a site calls it, it doesn't ask. I checked the Firefox plugin setting and it is set to ask. 2) The screen constantly flashes the box that says something is busy. (I used to see this occasionally on the Vista machine, but on this one the box goes on and off so fast I can't read it.) I did manage to position the mouse over the "stop plugin" button and click that when the box flashed up, but this didn't help. I don't remember that clicking this box ever helped on the Vista machine either.

I think, because Flash is installed on that fast drive, maybe it is just not designed for this and it just isn't going to work?

So far today I have uninstalled Flash twice, using the Adobe uninstaller (thanks for this advice from another post!) and re-installed it.


Since I am new to this computer, is this something that has been happening for a long time, or is everyone having this problem lately?

Does this have anything to do with Flash being on the SSD, and is there anything I can do about this?

What can I do?

Thank you!

My System SpecsSystem Spec
28 Aug 2016   #2

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1

Run the flash player removal tool again. Once finished:

Manually delete these:

Click Start (orb) > Run.

Copy and paste the following into the box and click OK. C:\Windows\system32\Macromed\Flash

Delete all the files in this folder.

Do the same for the following:
%appdata%\Adobe\Flash Player
%appdata%\Macromedia\Flash Player

Reboot. It is important to reboot at this point.

Then get the installer for flash player for Firefox directly from here:

(copy & paste the link)

Save the downloaded file to you desktop and run it. Once finished launch Firefox and check plugins by clicking the link below.

Check plugins here:

Then get this addon:

In about:configpreferences - Firefox - type about:config in Firefox address bar then press Enter and accept the warning.

In the search box find:
plugins.click_to_play and set to "true"
plugin.sessionPermissionNow.intervalInMinutes set it to 0 (zero)

On about:addons (plugins page) flash plugin must be "Ask to activate"

If video still loads automatically it must be using the Html5 player rather than Flash Player - like Youtube now uses Html5 player by default for example.

Which player is detected as default here?
What does the highlighted box show as in the screenshot below?

EDIT: To stop sites auto-playing Html5 video try:

media.autoplay.enabled preference - set to false
My System SpecsSystem Spec
28 Aug 2016   #3

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1

Note: Click to play per element for flash content by default isn't scheduled for release in Firefox builds until 2017.

I never understood why most users blindly go ahead and let flash activate for an entire website.
My System SpecsSystem Spec

28 Aug 2016   #4

Win-7-Pro64bit 7-H-Prem-64bit

Does Firefox still have google search as an option ?
PaleMoon dropped them

Yea I don't know why flash is so important to people to keep enabled either :)
My System SpecsSystem Spec
28 Aug 2016   #5
Judy in Texas

Windows 7 Professional 64 bit

Thank you, Callender for your very comprehensive reply. I was so infested that I couldn't even come to the forum because it immediately went into the Flash loop and overflow My Hotmail would let me do a few clicks before it added an ad link that used Flash (at least I assume that was what was happening) and hung up. But once I caught on to that I rebooted, signed in to Hotmail. and went directly to your message there and copied the instructions to Notepad and was able to save them and exit the browser before it went into the Flash loop again. Then I deleted files as you recommended. I think I will try to do without Flash for awhile. I have bookmarked this thread so that I can reinstall as per your advice.
ThrashZone, Firefox does still allow Google to be the default browser.
My System SpecsSystem Spec
29 Aug 2016   #6

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1

Have a read through this. It explains how to clean install Firefox and keep your current bookmarks and extensions.

Emails lost in Firefox inbox
My System SpecsSystem Spec

 Firefox and Flash, popup message about plugin not responding

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