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Kaspersky Protection Firefox plugins, both old and new?

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I've got installed Kaspersky Protection plugin in my Firefox browser. It's version is ""

Right now something strange happened. Once I restarted my browser the "new" Kaspersky Protection plugin was installed (version 20.0.543.428d-201811141115800).

Is this expected to new plugin to install and desired to have both of them enabled?

Also new plugin icon seems disabled (greyed-out) all the time - Is it also desired thing?

Pictures related.

Old plugin:



New plugin:



Extension panel:




Edited by QuaS

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:) Welcome to QuaS : As far as we know on this forum the latest

Kaspersky Protection extension - Version is 20.0.543.428d.xxx

so try to disabled the first one and Enabled the 20.0.543

if fails Uninstall-Reinstall Firefox : after Reinstall it

and opened..will offer to Enable the kaspersky

extension do So and verify which -1 is ..?

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