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Switch on forbidden addons

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Hello! My antivirus addons were blocked by Firefox (off). I want to switch on them. I can't to update them. How can I forbid torn off my addons for Firefox?

Hello! My antivirus addons were blocked by Firefox (off). I want to switch on them. I can't to update them. How can I forbid torn off my addons for Firefox?
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Chosen solution

For Kaspersky:

There's an add-on - https://addons.mozilla.org/fr/firefox/addon/install-unsigned-add-ons/ - to "automate" this procedure.

https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox#w_what-can-i-do-if-firefox-disables-an-installed-unsigned-add-on

Override add-on signing (advanced users): You can override this setting by changing the xpinstall.signatures.required preference to false in the Firefox Configuration Editor (about:config typed in the URL bar). Support is not available for any changes made with the Configuration Editor so please do this at your own risk.

Note: That pref will be gone in Firefox 44 (Release slated for Jan 26. 2016) so user's of currently un-signed extensions should contact the developers of those extensions and prod them into getting their act together & get their extensions signed by Mozilla. Otherwise the users of those extensions will be SOL come the release of Firefox 44. Mozilla has already pushed back the version in which this new security feature was to be enabled from Firefox 40 to 44. I doubt if there will be any further reprieve.


For Shockwave for Director:

I can't read that warning message, and I can't copy from an image and paste into a translation page. But that version isn't on the Blocklist. https://addons.mozilla.org/en-US/firefox/blocked/

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Chosen Solution

For Kaspersky:

There's an add-on - https://addons.mozilla.org/fr/firefox/addon/install-unsigned-add-ons/ - to "automate" this procedure.

https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox#w_what-can-i-do-if-firefox-disables-an-installed-unsigned-add-on

Override add-on signing (advanced users): You can override this setting by changing the xpinstall.signatures.required preference to false in the Firefox Configuration Editor (about:config typed in the URL bar). Support is not available for any changes made with the Configuration Editor so please do this at your own risk.

Note: That pref will be gone in Firefox 44 (Release slated for Jan 26. 2016) so user's of currently un-signed extensions should contact the developers of those extensions and prod them into getting their act together & get their extensions signed by Mozilla. Otherwise the users of those extensions will be SOL come the release of Firefox 44. Mozilla has already pushed back the version in which this new security feature was to be enabled from Firefox 40 to 44. I doubt if there will be any further reprieve.


For Shockwave for Director:

I can't read that warning message, and I can't copy from an image and paste into a translation page. But that version isn't on the Blocklist. https://addons.mozilla.org/en-US/firefox/blocked/