I figured out how to do this, I manually cleared every cookie for every host key.
android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "locale="); android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "datr="); android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "s="); android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "csm="); android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "fr="); android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "lu="); android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "c_user="); android.webkit.CookieManager.getInstance().setCookie(".facebook.com", "xs=");
source share