When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Bypass Firefox's Cache

Use Ctrl+Shift+r to reload the page fresh from the server.

Alternately, you also can clear Firefox's cache completely using:

"3-bar" menu button (or Tools menu) > Options > Advanced

On the Network mini-tab > Cached Web Content : "Clear Now"

If you have a large hard drive, this might take a few minutes.

(2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either:

   right-click and choose View Page Info > Security > "View Cookies"
   Alt+t (open the classic Tools menu) > Page Info > Security > "View Cookies" 

In the dialog that opens, you can remove the site's cookies individually.

Then try reloading the page. Does that help?

maybe its from the website NOT firrefox.

I am able to access the website via my other devices with no problem, so it can't be that particular website.

Reload the webpage while bypassing the cache using one of the following steps:

• Hold down the Shift key and click the Reload button in the navigation toolbar.

OR

• Press Ctrl + F5 or Ctrl + Shift + R (Windows and Linux)
• Press Command + Shift + R (Mac)

Let us know if this solves the issues you are having.

FFus3r said

When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site. (1) Bypass Firefox's Cache Use Ctrl+Shift+r to reload the page fresh from the server. Alternately, you also can clear Firefox's cache completely using: "3-bar" menu button (or Tools menu) > Options > Advanced On the Network mini-tab > Cached Web Content : "Clear Now" If you have a large hard drive, this might take a few minutes. (2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either: right-click and choose View Page Info > Security > "View Cookies" Alt+t (open the classic Tools menu) > Page Info > Security > "View Cookies" In the dialog that opens, you can remove the site's cookies individually. Then try reloading the page. Does that help?

George_Broxton said

This morning I had a Firefox Update and now I can no longer access a site (which I now to\be active and safe). However I try and access this site I get "Corrupted Content Error". Corrupted Content Error The site at https://www.harveynorman.com.au/ has experienced a network protocol violation that cannot be repaired. The page you are trying to view cannot be shown because an error in the data transmission was detected. Please contact the website owners to inform them of this problem.

FFus3r said

Reload the webpage while bypassing the cache using one of the following steps:

• Hold down the Shift key and click the Reload button in the navigation toolbar.

OR

• Press Ctrl + F5 or Ctrl + Shift + R (Windows and Linux)
• Press Command + Shift + R (Mac)

Let us know if this solves the issues you are having.

Thanks heaps for your help. Cheers, George