How to disable Kaspersky Internet Security Plugins for Firefox

Question

Kaspersky Internet Security automatically installs Plugins/Addons for Firefox. If you try disabling those, they will automatically get re-enabled on the next start of Firefox. Not even Safe mode helps.

I also tried removing the registry keys as described in the mozillaZine Knowledge Base to no avail.

I also saw the solution which popped up first on Google, suggesting to disable the automatic plugin enabling of Kaspersky and then disabling the plugin in Firefox. However, that was not going to work for me because I had already disabled the full feature (I switched off the whole "Web Anti Virus" feature).

So how can you disable those plugins?

Affected Versions:

• Windows 7/Windows 10
• Kaspersky Internet Security 15

Answer 1

1. Open Kaspersky Internet Security (double-click the Kaspersky Icon in the Taskbar)
2. Open "Settings" (bottom link bar)
3. Click tab "Protection"
4. Enable "Web-Anti-Virus" (click the switch on the right side)
5. Click the "Web-Anti-Virus" entry to open its settings
6. On the bottom of the settings screen, click "Advanced Settings"
7. On the advanced settings screen, uncheck "Automatically activate application plug-ins in all web browsers".
8. Start Firefox
9. Click on the three lines which is your Menu (top right)
10. A small menu opens. Click "Add-ons".
11. Disable all Kaspersky addons you do not want to use by clicking on the dropdown and choosing "disable"
12. Click on one of the "restart now" links which appear next to the plugin's names or just close and restart Firefox to make sure the addons are gone.

Basic solution is the same as provided by GeorgeCT on the Kaspersky Forums. I basically only found out you have to re-enable the "Web-Anti-Virus" feature so you can disable the automatic re-enabling of add-ons in Firefox. I cross-posted here to save some poor soul a lot of searching.