Hard to help with something we cannot see.  ;-/ Screenshots and steps to replicate please. Show us the issue(s) you are having.

DNS = finding the numeric IP address associated with a host name like www.linkedin.com

All browsers need DNS, so you can't use the web without it. Were they referring to a DNS add-on, or something like that?

Working from the other direction: what is the error message you're getting when trying to access parts of LinkedIn or related sites?

Dear jscher2000

I shared what you said and Linked In support responded by saying:

"DNS translates domain names to IP addresses so browsers can load Internet resources.

But sometimes the browser's DNS faces server issues due to which we sometimes are unable to access some websites or some features of the website. That is why it is best to change the browser and check that the problem is with the website or not. And as you said that you are able to access the features in Chrome that means the problem is in the browser not the website."

What do you make of this?

That sounds like some general commentary not linked to a specific failure.

Chrome uses Google DNS to look up addresses, while Firefox may use Cloudflare or whatever is configured at the system level on your Mac. Seems a bit fragile if LinkedIn breaks without Google's DNS. There is a way to add Google as an option for DNS over HTTPS, but I've lost track of the steps.

It's more likely that Firefox's privacy settings are affecting LinkedIn than inability to find a site. However, my use of LinkedIn is very limited so what do I know.

Thank you both - After clicking on Linked In's ' Public profile & URL ' it takes me to a blank page instead of revealing what's on the page. Here's a screen shot but tells very little but I'm unable to provide a video.

The page at https://www.linkedin.com/public-profile/settings pulls in content from

• www.linkedin.com
• static.licdn.com
• media.licdn.com

One thing I noticed is that the files coming from "static" have the Content-Disposition: attachment header set, which means that if you try to retrieve them directly, Firefox will download them instead of displaying them in the tab. Examples:

• https://static.licdn.com/aero-v1/sc/h/dfzxj7qkeiedqshy4n99gfu5c (style sheet)
• https://static.licdn.com/aero-v1/sc/h/5q92mjc5c51bjlwaj3rs9aa82 (background image)

That's strange. I wonder whether it is creating a problem for your Firefox even though mine is displaying the page normally? Do you have any add-ons related to downloads?