diff --git a/addon_firefox/bcma/bg.js b/addon_firefox/bcma/bg.js
deleted file mode 100644
index 61ad23836..000000000
--- a/addon_firefox/bcma/bg.js
+++ /dev/null
@@ -1,84 +0,0 @@
-let apiurl = 'https://searxes.danwin1210.me/collab/open/ismitm.php';
-let TORapiurl = 'http://searxes.nmqnkngye4ct7bgss4bmv5ca3wpa55yugvxen5kz2bbq67lwy6ps54yd.onion/collab/open/ismitm.php';
-
-fetch('http://searxes.nmqnkngye4ct7bgss4bmv5ca3wpa55yugvxen5kz2bbq67lwy6ps54yd.onion/collab/open/ok', {
-	method: 'GET',
-	mode: 'cors'
-}).then(r => r.text()).then(r => {
-	if (r == 'ok') {
-		apiurl = TORapiurl;
-	}
-}).catch(() => {});
-
-function is_infected(f) {
-	return new Promise((g, b) => {
-		fetch(apiurl, {
-			method: 'POST',
-			mode: 'cors',
-			headers: {
-				'Content-Type': 'application/x-www-form-urlencoded'
-			},
-			body: 'f=' + f
-		}).then(r => r.json()).then(r => {
-			if (r[0]) {
-				g(r[1]);
-			} else {
-				b();
-			}
-		}).catch(b);
-	});
-}
-
-function i_already_know_you(f) {
-	if (!/^([a-z0-9_.-]{1,255})\.([a-z]{2,80})$/.test(f)) {
-		return false;
-	}
-	return new Promise((g, b) => {
-		browser.storage.local.get(f).then((ff) => {
-			if (ff[f]) {
-				if (ff[f] == 'y') {
-					g(1);
-				} else {
-					g(-1);
-				}
-			} else {
-				g(0);
-			}
-		}, () => {
-			g(0);
-		});
-	});
-}
-
-function i_remember_you(f, t) {
-	browser.storage.local.set({
-		[f]: ((t) ? 'y' : 'n')
-	});
-}
-
-function clear_cache_week() {
-	browser.storage.local.clear();
-	setTimeout(function () {
-		clear_cache_week();
-	}, 604800000);
-}
-
-clear_cache_week();
-
-browser.runtime.onMessage.addListener((request, sender, sendResponse) => {
-	if (request && sender) {
-		i_already_know_you(request).then((r) => {
-			if (r == 1 || r == -1) {
-				browser.tabs.sendMessage(sender.tab.id, [request, ((r == 1) ? true : false)]);
-			}
-			if (r == 0) {
-				is_infected(request).then((a) => {
-					i_remember_you(request, a);
-					browser.tabs.sendMessage(sender.tab.id, [request, a]);
-				}, () => {
-					browser.tabs.sendMessage(sender.tab.id, [request, false]);
-				});
-			}
-		}, () => {});
-	}
-});