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Why my internet banking application works in Firefox 21 and 22 in Win version but not in Mac version? There is also no issue for Firefox 20 or earlier in Mac.

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There is a workaround. When I use private window, my internet banking application can work as per normal. This is unlike in the past where it can work in normal window in Firefox 20 or earlier in Mac.

There is a workaround. When I use private window, my internet banking application can work as per normal. This is unlike in the past where it can work in normal window in Firefox 20 or earlier in Mac.

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Private windows do not have your site-specific history of cached files and cookies. So, you could try this in a normal window:

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 (MAC: Command+Shift+r) to reload the page fresh from the server.

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

(WIN) orange Firefox button (or Tools menu) > Options > Advanced
(MAC) Firefox menu > Preferences > 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"
  • 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?