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

i get annoying pop-ups"javascript application, exc in ev handl: OSAPIg.oRoot.log is not in function". Please how can I remove them.

more options

Hello, i get extremely annoying pop-ups: "Javascript application, exc in ev handl: OSAPIg/oRoot.log is not a function."

I already upgraded but after two days it's back. Please help. I don't want to go back to Explorer.

Hello, i get extremely annoying pop-ups: "Javascript application, exc in ev handl: OSAPIg/oRoot.log is not a function." I already upgraded but after two days it's back. Please help. I don't want to go back to Explorer.

All Replies (1)

more options

This issue can be caused by the McAfee Site Advisor extension

______________________________________________________

Start Firefox in Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).