All extensions disabled due to expiration of intermediate signing cert
To re-enable all disabled non-system addons you can do the following. I am not responsible if this fucks up your install:<p>Open the browser console by hitting ctrl-shift-j<p>Copy and paste the following code, hit enter. Until mozilla fixes the problem you will need to redo this once every 24 hours:<p><pre><code>    &#x2F;&#x2F; Re-enable *all* extensions

    async function set_addons_as_signed() {
        Components.utils.import(&quot;resource:&#x2F;&#x2F;gre&#x2F;modules&#x2F;addons&#x2F;XPIDatabase.jsm&quot;);
        Components.utils.import(&quot;resource:&#x2F;&#x2F;gre&#x2F;modules&#x2F;AddonManager.jsm&quot;);
        let addons = await XPIDatabase.getAddonList(a =&gt; true);

        for (let addon of addons) {
            &#x2F;&#x2F; The add-on might have vanished, we&#x27;ll catch that on the next startup
            if (!addon._sourceBundle.exists())
                continue;

            if( addon.signedState != AddonManager.SIGNEDSTATE_UNKNOWN )
                continue;

            addon.signedState = AddonManager.SIGNEDSTATE_NOT_REQUIRED;
            AddonManagerPrivate.callAddonListeners(&quot;onPropertyChanged&quot;,
                                                    addon.wrapper,
                                                    [&quot;signedState&quot;]);

            await XPIDatabase.updateAddonDisabledState(addon);

        }
        XPIDatabase.saveChanges();
    }

    set_addons_as_signed();
</code></pre>
Edit: Cleanup up code slightly...