I'm not seeing this. The slider looks OK.

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.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

Hi, Thank you for your response. I followed your instructions, but without result. Did then remove and re-install Firefox. This has not helped. I have this problem on two desktop computers at home.

Regards, Wolf

Can you attach a screenshot to make sure that I understand this issue?

• http://en.wikipedia.org/wiki/Screenshot
• https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem

Use a compressed image type like PNG or JPG to save the screenshot.

Hi, Here the screenshot of the website.

Regards, Wolf

That is what I expected from your description, but I'm not seeing this.
I only see one set with Firefox 25 and 26 and not images double like in your screenshot.

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.

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Try a new test profile to check if your current profile is causing the problems.

See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Hi,

It has been solved. I created a new profile and delete the old one. I am very happy with this. Thanks for your support.

Regards, Wolf