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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

EPUB files open multiple tabs & will not stop!!!

  • 6 replies
  • 1 has this problem
  • 1 view
  • Last reply by Scratchyer

Scratchyer
Scratchyer
more options

Hello,

https://addons.mozilla.org/en-US/firefox/addon/epubreader/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search

Installed on 90.0.2 (64-bit).

Works fine when opening an EPUB from the browser but if I double click on an EPUB file it opens multiple tabs & will not stop, has anyone else encountered this & been able to fix it?

Windows 10 Asus laptop, no issues with anythng else, am wondering if Windows 10 App settings could have anything to do with it but have not been able to find a way to disable default settings completely? Alternately is there something I can do via about:config on Firefox to alter this?

Ideally I don't want to have to uninstall Firefox completely in the hopes of seeing if a fresh install will stop this issue arising.

Thanks

Hello, https://addons.mozilla.org/en-US/firefox/addon/epubreader/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search Installed on 90.0.2 (64-bit). Works fine when opening an EPUB from the browser but if I double click on an EPUB file it opens multiple tabs & will not stop, has anyone else encountered this & been able to fix it? Windows 10 Asus laptop, no issues with anythng else, am wondering if Windows 10 App settings could have anything to do with it but have not been able to find a way to disable default settings completely? Alternately is there something I can do via about:config on Firefox to alter this? Ideally I don't want to have to uninstall Firefox completely in the hopes of seeing if a fresh install will stop this issue arising. Thanks

Chosen solution

Note that you need to remove this action via "Settings -> General -> Applications"

If you can't find it here then rename/remove handlers.json in the Firefox profile folder with Firefox closed.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

Read this answer in context 👍 1

All Replies (6)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

Right, this is a known issue. Do not choose Firefox as a helper application to always open the file type, as this can cause a problem where Firefox repeatedly opens empty tabs or windows after you click on a link.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

Note that you need to remove this action via "Settings -> General -> Applications"

If you can't find it here then rename/remove handlers.json in the Firefox profile folder with Firefox closed.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

Scratchyer
Scratchyer Question owner
more options

TyDraniu said
Right, this is a known issue. Do not choose Firefox as a helper application to always open the file type, as this can cause a problem where Firefox repeatedly opens empty tabs or windows after you click on a link.

Any chance this can be fixed?

Scratchyer
Scratchyer Question owner
more options

cor-el said
Note that you need to remove this action via "Settings -> General -> Applications" If you can't find it here then rename/remove handlers.json in the Firefox profile folder with Firefox closed. You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

Thanks this worked, though it would be good to be able to open EPUB files by clicking them.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Firefox can't handle this file type internally because otherwise it wouldn't prompt you via the 'open with' dialog. You need to open such a file in an external application that can handle this file.

Scratchyer
Scratchyer Question owner
more options

cor-el said
Firefox can't handle this file type internally because otherwise it wouldn't prompt you via the 'open with' dialog. You need to open such a file in an external application that can handle this file.

Ok, thanks.