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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

When I download an item on windows desktop, firefox repeatedly opens tab after tab - got up to 60 + before I realized it.

  • 5 uphendule
  • 1 inale nkinga
  • 35 views
  • Igcine ukuphendulwa ngu cor-el

more options

Tried to download bills from FPL, Comcast and Verizon and never got to see them due to Firefox rapidly opening a seemingly infinite number of tabs. The only way to stop it was to close all tabs. When I went to Google instead, I was able to do normal download.

Tried to download bills from FPL, Comcast and Verizon and never got to see them due to Firefox rapidly opening a seemingly infinite number of tabs. The only way to stop it was to close all tabs. When I went to Google instead, I was able to do normal download.

All Replies (5)

more options

You get tabs opening endlessly if you select Firefox as the application to handle a file when you get an "Open with" dialog.

You should never select Firefox as the application to handle a specific file type.

more options

I did NOT choose Firefox to handle a file upon getting an "open with" dialog. Rather, as I said, I was trying to "download" a copy of a bill from, for example, Verizon. When I clicked "download", the endless tab parade began. The only way I could stop it was to click "close all tabs" which kept me from being able to download the file I wanted.

When I started all over on Chrome, I had no problem. Also, when I did the same procedure on my Mac, using Firefox, I had no problem.

Later in the day, I was on Fidelity on Firefox on my windows10 IOS, and the same issue happened again.

This never happened before today! The only thing I can make out is that the issue is with Firefox on Windows 10.

Any help will be appreciated.

more options

What file extension does this file have?

It is likely that you had ever created such an automatic action for this file extension in the past.

You can check the handlers.json file in the profile folder and see if you can locate this file extension. If you aren't experienced with JSON files then best is to rename/remove handlers.json (handlersOLD.json) to reset all actions stored in the file. otherwise you can edit the file and remove this section and open the file in a Firefox tab to verify the file is still valid JSON code.

more options

I have never created an automatic action for "this file extension" and do not even know what file extension it may be.

Here are the steps leading to the problem: 1. I log in to the vendor - let's say Verizon 2. I click on "View Bill" which I do every month for several vendors 3. NORMALLY the bill opens and I save as a pdf. The address for the bill is NORMALLY something like: https://myvpostpay.verizonwireless.com/ui/bill/data/ao/printPdf?stmtDate=February+04,+2020

However, now I cannot get that far and cannot see the bill, because when I click "view bill" the tabs begin opening so fast I cannot see anything!

I have never used or even seen a handlers.json file.

more options

If this is a PDF file then check this file type in Options/Preferences and make sure it is set to "Preview in Firefox" in case you have accidentally changed it to Firefox.