Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Capcha on website missing

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by Newbeak

more options

When I sent a letter to the editor of my local paper,the captcha at the bottom of the page was missing,and only an asterisk was displayed.The captcha rendered correctly in Chrome,so it appears to be a FF problem.

When I sent a letter to the editor of my local paper,the captcha at the bottom of the page was missing,and only an asterisk was displayed.The captcha rendered correctly in Chrome,so it appears to be a FF problem.

Chosen solution

Well,I figured it out. An add-on called "Google Disconnect" was the culprit.I disabled it on the "write a letter to the editor" page of my newspaper,and the capcha reappeared.It is still active on other websites,and that's the way I like it.Google ads were becoming overpowering. Thanks for your suggestions!

Read this answer in context 👍 0

All Replies (4)

more options

You can try these steps in case of issues with web pages:

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • Hold down the Shift key and left-click the Reload button
  • Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • Press "Command + Shift + R" (Mac)

Clear the cache and remove cookies only from websites that cause problems.

"Clear the Cache":

  • Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
more options

The only thing you suggested that works is running in safe mode.Does that mean one of my extensions is at fault? I have only added one new extension,and when I disabled it,it didn't solve my problem.Could it be something to do with the new FF version?

more options

If it works in Safe Mode and in normal mode with all extensions (Firefox/Tools > Add-ons > Extensions) disabled then try to find which extension is causing it by enabling one extension at a time until the problem reappears.

Close and restart Firefox after each change via "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: Firefox > Quit Firefox; Linux: Firefox/File > Quit)

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.


In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder in profile folder)
  • default toolbar layout is used
  • JavaScript JIT compilers are disabled
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected
more options

Chosen Solution

Well,I figured it out. An add-on called "Google Disconnect" was the culprit.I disabled it on the "write a letter to the editor" page of my newspaper,and the capcha reappeared.It is still active on other websites,and that's the way I like it.Google ads were becoming overpowering. Thanks for your suggestions!