Is Web Ad Blocker safe?

// DETECT WHEN CHROME BROWSER LOADS
chrome.runtime.onStartup.addListener( async function (){
	console.log("\ud83d\udd27 [SW DEBUG] Browser startup detected");
	
	if(!SW?.TOTAL_COUNTER?.trk && !SW?.TOTAL_COUNTER?.ads){
		IDB.readTableByKey('totalCounter', `last30Days`, (data) => {
			SW.TOTAL_COUNTER = data || {ads: 0, trk: 0};
			console.log("\ud83d\udd27 [SW DEBUG] Loaded total counter:", SW.TOTAL_COUNTER);
		});
	}
	SW.SERVER_SETTINGS = await SSET.getServerConfigNowAsync();
	SW.USER_SETTINGS = await STORAGE.readAllSettingsAsync();
	SW.WHITELIST = await WLIST.getEffectiveListWithExtra(false);
	SW.HIDDEN_LIST = await HLIST.getUserList();
	
	console.log("\ud83d\udd27 [SW DEBUG] Settings loaded on startup");
	console.log("\ud83d\udd27 [SW DEBUG] Server settings:", SW.SERVER_SETTINGS);
	console.log("\ud83d\udd27 [SW DEBUG] User settings keys:", Object.keys(SW.USER_SETTINGS));
	console.log("\ud83d\udd27 [SW DEBUG] Whitelist:", SW.WHITELIST);
	
	await SW.processWithScripts();
	if ((SW.isInFreeTrial()) || (SW.isRegisteredNotExpired())) {
		console.log("\ud83d\udd27 [SW DEBUG] User is in trial or registered, updating tabs");
		(!TABS.loaded) && TABS.updateTabs();
	} else {
		console.log("\ud83d\udd27 [SW DEBUG] User not in trial/registered, updating tabs with disabled state");
		TABS.updateTabs(false);
		TOTALS.forceExpiredIcon();
	}
	// SET OUR UNINSTALL URL
	SW.setUninstallURL();
	if (SW.bDebugMode || COMMON.rand(1, 5) == 5) { // 20% of the time
		LIC.verifyKey(SW);
	}
});

SSET.getServerConfigNow = (fn) => {
	console.log('** SSET.getServerConfigNow');
	fetch('https://webadblocker.org/pluginservice-mv3/ajax-getconfig.php')
		.then(response => response.json())
		.then(json => {
			STORAGE.saveSetting('xab_SERVER_SETTINGS',json);
			STORAGE.readSetting('xab_SERVER_SETTINGS',fn);
			if (typeof SW == 'object') {
				SW.updatedServerSettings();
			}
		})
		.catch(error => {
			console.error('error',error);
		});
};

SSET.getServerConfigNonCritical = (nMax) => {
	return new Promise(resolve => {
		// we use -1 as a trick to force pulling from local settings unless it's empty
		if ((COMMON.rand(1,nMax) == nMax) && (nMax != -1)) { // if nMax == 5, then run 20% of the time
			SSET.getServerConfigNow(function(o) {
				resolve(o);
			});
		} else {
			SSET.getLocalSettings(function(o,bEmpty) {
				if (!bEmpty) {
					resolve(o);
				} else {
					SSET.getServerConfigNow(function(o) {
						resolve(o);
					});
				}
			});
		}
	});
};

"content_scripts": [ {
   "all_frames": false,
   "css": [ "content.css" ],
   "js": [ "modules/jquery-3.6.0.min.js", "modules/common.js", "modules/storage.js", "modules/sset.js", "modules/idb.js", "modules/wlist.js", "modules/hlist.js", "modules/stats.js", "modules/lic.js", "modules/totals.js", "modules/tutorial.js", "modules/notif.js", "modules/foot.js", "modules/head.js", "filters/hosts.js", "filters/sel.js", "filters/extra.js", "filters/fb.js", "filters/yt.js", "filters/search.js", "filters/track.js", "content.js" ],
   "matches": [ "http://*/*", "https://*/*" ],
   "run_at": "document_start"
} ]

// called from content.js
FOOT.showFoot = (totals) => {
	var extensionOrigin = 'chrome-extension://' + chrome.runtime.id;
	if (!location.ancestorOrigins.contains(extensionOrigin)) {
		console.log('FOOT: !location.ancestorOrigins.contains(extensionOrigin)');
		let iframe = document.createElement('iframe');
		iframe.setAttribute('id','wab-iframe2');
		// Must be declared at web_accessible_resources in manifest.json
		let sShowFooterC = CONT.SERVER_SETTINGS.SHOW_FOOTER_STRATEGY_C || 'no';
		bShowFooterC = (sShowFooterC == 'yes');
		let sFootOff = CONT.USER_SETTINGS.xab_foot_off || 'no';
		let bFootOff = (sFootOff == 'yes');
		// commented out below so that we always show the older footer (foot.html) for now on 11/6/2024
		//if (bFootOff && bShowFooterC) {
		//iframe.src = chrome.runtime.getURL('/foot2.html');
		//} else {
		//iframe.src = chrome.runtime.getURL('/foot.html');
		//}
		//for testing -- iframe.src = chrome.runtime.getURL('/foot-b.html');
		//for testing -- iframe.style.cssText = 'display:block !important;background:transparent;position:fixed;left:0;width:100%;bottom:0px;height:205px;z-index:2147483647;border:0px;';

		let sShowFooterD = CONT.SERVER_SETTINGS.SHOW_FOOTER_STRATEGY_D || 'no'; // implemented on the server on 11/6/2024
		bShowFooterD = (sShowFooterD == 'yes');
		if (bShowFooterD) { // show split test
			if (COMMON.rand(1,2) == 1) { // condition A (control)
				STATS.track('wab-footer-test1','A - Footer Shown (A)');
				iframe.src = chrome.runtime.getURL('/foot-a.html');
				iframe.style.cssText = 'display:block !important;background:transparent;position:fixed;left:0;width:100%;bottom:0px;height:180px;z-index:2147483647;border:0px;';
			} else { // condition B (test)
				STATS.track('wab-footer-test1','A - Footer Shown (B)');
				iframe.src = chrome.runtime.getURL('/foot-b.html');
				iframe.style.cssText = 'display:block !important;background:transparent;position:fixed;left:0;width:100%;bottom:0px;height:205px;z-index:2147483647;border:0px;';
			}
		} else { // don't show split test
			iframe.src = chrome.runtime.getURL('/foot.html');
			iframe.style.cssText = 'display:block !important;background:transparent;position:fixed;left:0;width:100%;bottom:0px;height:180px;z-index:2147483647;border:0px;';
		}

		//iframe.style.cssText = 'display:block !important;background:transparent;position:fixed;left:0;width:100%;bottom:0px;height:180px;z-index:2147483647;border:0px;';
		document.body.appendChild(iframe);
		let oIframe = document.getElementById('wab-iframe2');
		if (oIframe) {
			console.log('FOOT: grabbed iframe handle');
			setTimeout(function(){
				if (oIframe.contentWindow) {
					updateTotals = async () => {
						CONT.USER_SETTINGS = await STORAGE.readAllSettingsAsync();
						let nTotalAds = (totals && totals.ads) ? totals.ads : 0;
						let nTotalTrackers = (totals && totals.trk) ? totals.trk : 0;
						let nMaxAds = CONT.USER_SETTINGS.xab_max_ads || 0;
						let nMaxTrackers = CONT.USER_SETTINGS.xab_max_trackers || 0;
						nMaxAds = (nMaxAds < nTotalAds) ? nTotalAds : nMaxAds;
						nMaxTrackers = (nMaxTrackers < nTotalTrackers) ? nTotalTrackers : nMaxTrackers;
						nMaxAds = (nMaxAds > COMMON.MAX_TOTAL_AD_COUNT) ? COMMON.MAX_TOTAL_AD_COUNT : nMaxAds;
						nMaxTrackers = (nMaxTrackers > COMMON.MAX_TOTAL_AD_COUNT) ? COMMON.MAX_TOTAL_AD_COUNT : nMaxTrackers;
						STORAGE.saveSetting('xab_max_ads',nMaxAds);
						STORAGE.saveSetting('xab_max_trackers',nMaxTrackers);
						CONT.USER_SETTINGS.xab_max_ads = nMaxAds;
						CONT.USER_SETTINGS.xab_max_trackers = nMaxTrackers;
						oIframe.contentWindow.postMessage({onWABUpdatedMaxCount:{maxAds:nMaxAds,maxTrackers:nMaxTrackers}},'*');
					};
					updateTotals();
				}
			},2000);
		}
	}
};

// called from foot.html
FOOT.onUserClickUpgrade = () => {
	let sWhich = 'A';
	if ($('#wabfoot').hasClass('wabfootb')) { // condition B (test)
		STATS.track('wab-footer-test1','B - Clicked Upgrade (B)');
		sWhich = 'B';
	} else { // condition A (control)
		STATS.track('wab-footer-test1','B - Clicked Upgrade (A)');
	}
	FOOT.onUserClickClose();
	window.parent.postMessage({onWABFootUpgrade:true,whichFooter:sWhich},'*');
};

// called from foot.html
FOOT.loadFootPageCode = () => {
	window.addEventListener('message',function(e) {
		let o = event.data;
		(o.onWABUpdatedMaxCount) && FOOT.onUpdatedCount(o.onWABUpdatedMaxCount);
	},false);

	$(document).ready(function() {
		$('#wabfoot #remind').click(function(e) {
			FOOT.onUserClickReminder();
		});

		$('#wabfoot #upgrade').click(function(e) {
			e.preventDefault();
			FOOT.onUserClickUpgrade();
			return false;
		});

		$('#wabfoot #close').click(function(e) {
			e.preventDefault();
			FOOT.onUserClickClose();
			return false;
		});
	});
};

var STATS = {}; // feature split test tracking

STATS.track = (sBucket,sEvent) => { // for split tests
	// meteor4.com, owned by webadblocker.org 
	fetch('https://meteor4.com/meteor/write?b=' + '' + encodeURIComponent(sBucket) + '&ev=' + encodeURIComponent(sEvent) + '&f=yes&nf=')
		.then(response => response.text())
		.then(text => {
			console.log('STATS: tracking response text: ',text);
		})
		.catch(error => {
			console.error('error',error);
		});
};