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

cannot open file browser to attach files

  • 1 phendula
  • 1 inayo le ngxaki
  • 2 views
  • Impendulo yokugqibela ngu FredMcD

more options

Expected behaviour:

When I click an attach file button, a file browser window should open showing files on my local system. When I select a file, that file gets uploaded through the browser.

Actual behaviour:

When I click an attach file button, the cursor changes to a colourful spinny wheel, and no file browser window opens.

Expected behaviour: When I click an attach file button, a file browser window should open showing files on my local system. When I select a file, that file gets uploaded through the browser. Actual behaviour: When I click an attach file button, the cursor changes to a colourful spinny wheel, and no file browser window opens.

All Replies (1)

more options

Make sure you are not blocking content.

https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/

https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection


Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?


Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.