We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Code displays in ad videos

  • 5
  • 1 nwere nsogbu anwere nsogbu a
  • 9 views
  • Nzaghachi ikpeazụ nke mwrr

more options

Recently my Firefox (69.0.1 64-bit on Win 10) started displaying code overlaid on video ads. It happens only on ad videos, not other videos. I don't care very much because it's only for ads, but nevertheless...

Recently my Firefox (69.0.1 64-bit on Win 10) started displaying code overlaid on video ads. It happens only on ad videos, not other videos. I don't care very much because it's only for ads, but nevertheless...
Nseta ihuenyo ndị agbakwunyere

All Replies (5)

more options

Hi mwrr, I have no idea why that is visible. Browsers don't display the contents of <script> tags, so I would guess the page was modified in some way, or a script in the page injected script code into the wrong place, or you can see the matrix even when the rest of us can't.

Does it happen on other sites, or just a particular site?

Do you keep captions (CC) enabled?

more options

This happens on all sites. I tested it on another browser (Edge) and it doesn't happen. I first noticed it happening on the full-page video ads between innings of MLB games. I don't know about "captions (CC) enabled". Tell me more.

more options

Captions are used to display text for the hearing impaired or other languages. Just wondered if the script might be showing up instead of the intended caption text.

Do you use any external filters on your browsing, such as security suites that intercept web requests (e.g., Avast, AVG, Biteefender, ESET, Kaspersky)? Possibly one of those is modifying something, but it's hard to imagine how to re-create the situation.

Do you use any custom style rules in an optional userContent.css file?

more options

Nope, don't use captions. Also no custom styles. I do have ESET active on my computer. I'll try disabling it and see if the issue disappears.

more options

I didn't change anything and now, lo and behold, the video ads are normal.