diff --git a/src/plugins/youtubeAdblock.desktop/adguard.js b/src/plugins/youtubeAdblock.desktop/adguard.js
index 8f809c3d3..395cbd4f4 100644
--- a/src/plugins/youtubeAdblock.desktop/adguard.js
+++ b/src/plugins/youtubeAdblock.desktop/adguard.js
@@ -18,199 +18,203 @@
  * You should have received a copy of the GNU General Public License
  * along with AdGuard's Block YouTube Ads.  If not, see <http://www.gnu.org/licenses/>.
  */
+(() => {
+    if (window.adguardInjected) return;
+    window.adguardInjected = true;
 
-const hiddenCSS = [
-    "#__ffYoutube1",
-    "#__ffYoutube2",
-    "#__ffYoutube3",
-    "#__ffYoutube4",
-    "#feed-pyv-container",
-    "#feedmodule-PRO",
-    "#homepage-chrome-side-promo",
-    "#merch-shelf",
-    "#offer-module",
-    '#pla-shelf > ytd-pla-shelf-renderer[class="style-scope ytd-watch"]',
-    "#pla-shelf",
-    "#premium-yva",
-    "#promo-info",
-    "#promo-list",
-    "#promotion-shelf",
-    "#related > ytd-watch-next-secondary-results-renderer > #items > ytd-compact-promoted-video-renderer.ytd-watch-next-secondary-results-renderer",
-    "#search-pva",
-    "#shelf-pyv-container",
-    "#video-masthead",
-    "#watch-branded-actions",
-    "#watch-buy-urls",
-    "#watch-channel-brand-div",
-    "#watch7-branded-banner",
-    "#YtKevlarVisibilityIdentifier",
-    "#YtSparklesVisibilityIdentifier",
-    ".carousel-offer-url-container",
-    ".companion-ad-container",
-    ".GoogleActiveViewElement",
-    '.list-view[style="margin: 7px 0pt;"]',
-    ".promoted-sparkles-text-search-root-container",
-    ".promoted-videos",
-    ".searchView.list-view",
-    ".sparkles-light-cta",
-    ".watch-extra-info-column",
-    ".watch-extra-info-right",
-    ".ytd-carousel-ad-renderer",
-    ".ytd-compact-promoted-video-renderer",
-    ".ytd-companion-slot-renderer",
-    ".ytd-merch-shelf-renderer",
-    ".ytd-player-legacy-desktop-watch-ads-renderer",
-    ".ytd-promoted-sparkles-text-search-renderer",
-    ".ytd-promoted-video-renderer",
-    ".ytd-search-pyv-renderer",
-    ".ytd-video-masthead-ad-v3-renderer",
-    ".ytp-ad-action-interstitial-background-container",
-    ".ytp-ad-action-interstitial-slot",
-    ".ytp-ad-image-overlay",
-    ".ytp-ad-overlay-container",
-    ".ytp-ad-progress",
-    ".ytp-ad-progress-list",
-    '[class*="ytd-display-ad-"]',
-    '[layout*="display-ad-"]',
-    'a[href^="http://www.youtube.com/cthru?"]',
-    'a[href^="https://www.youtube.com/cthru?"]',
-    "ytd-action-companion-ad-renderer",
-    "ytd-banner-promo-renderer",
-    "ytd-compact-promoted-video-renderer",
-    "ytd-companion-slot-renderer",
-    "ytd-display-ad-renderer",
-    "ytd-promoted-sparkles-text-search-renderer",
-    "ytd-promoted-sparkles-web-renderer",
-    "ytd-search-pyv-renderer",
-    "ytd-single-option-survey-renderer",
-    "ytd-video-masthead-ad-advertiser-info-renderer",
-    "ytd-video-masthead-ad-v3-renderer",
-    "YTM-PROMOTED-VIDEO-RENDERER",
-];
-/**
-* Adds CSS to the page
-*/
-const hideElements = () => {
-    const selectors = hiddenCSS;
-    if (!selectors) {
-        return;
-    }
-    const rule = selectors.join(", ") + " { display: none!important; }";
-    const style = document.createElement("style");
-    style.textContent = rule;
-    document.head.appendChild(style);
-};
-/**
-* Calls the "callback" function on every DOM change, but not for the tracked events
-* @param {Function} callback callback function
-*/
-const observeDomChanges = callback => {
-    const domMutationObserver = new MutationObserver(mutations => {
-        callback(mutations);
-    });
-    domMutationObserver.observe(document.documentElement, {
-        childList: true,
-        subtree: true,
-    });
-};
-/**
-* This function is supposed to be called on every DOM change
-*/
-const hideDynamicAds = () => {
-    const elements = document.querySelectorAll("#contents > ytd-rich-item-renderer ytd-display-ad-renderer");
-    if (elements.length === 0) {
-        return;
-    }
-    elements.forEach(el => {
-        if (el.parentNode && el.parentNode.parentNode) {
-            const parent = el.parentNode.parentNode;
-            if (parent.localName === "ytd-rich-item-renderer") {
-                parent.style.display = "none";
-            }
+    const hiddenCSS = [
+        "#__ffYoutube1",
+        "#__ffYoutube2",
+        "#__ffYoutube3",
+        "#__ffYoutube4",
+        "#feed-pyv-container",
+        "#feedmodule-PRO",
+        "#homepage-chrome-side-promo",
+        "#merch-shelf",
+        "#offer-module",
+        '#pla-shelf > ytd-pla-shelf-renderer[class="style-scope ytd-watch"]',
+        "#pla-shelf",
+        "#premium-yva",
+        "#promo-info",
+        "#promo-list",
+        "#promotion-shelf",
+        "#related > ytd-watch-next-secondary-results-renderer > #items > ytd-compact-promoted-video-renderer.ytd-watch-next-secondary-results-renderer",
+        "#search-pva",
+        "#shelf-pyv-container",
+        "#video-masthead",
+        "#watch-branded-actions",
+        "#watch-buy-urls",
+        "#watch-channel-brand-div",
+        "#watch7-branded-banner",
+        "#YtKevlarVisibilityIdentifier",
+        "#YtSparklesVisibilityIdentifier",
+        ".carousel-offer-url-container",
+        ".companion-ad-container",
+        ".GoogleActiveViewElement",
+        '.list-view[style="margin: 7px 0pt;"]',
+        ".promoted-sparkles-text-search-root-container",
+        ".promoted-videos",
+        ".searchView.list-view",
+        ".sparkles-light-cta",
+        ".watch-extra-info-column",
+        ".watch-extra-info-right",
+        ".ytd-carousel-ad-renderer",
+        ".ytd-compact-promoted-video-renderer",
+        ".ytd-companion-slot-renderer",
+        ".ytd-merch-shelf-renderer",
+        ".ytd-player-legacy-desktop-watch-ads-renderer",
+        ".ytd-promoted-sparkles-text-search-renderer",
+        ".ytd-promoted-video-renderer",
+        ".ytd-search-pyv-renderer",
+        ".ytd-video-masthead-ad-v3-renderer",
+        ".ytp-ad-action-interstitial-background-container",
+        ".ytp-ad-action-interstitial-slot",
+        ".ytp-ad-image-overlay",
+        ".ytp-ad-overlay-container",
+        ".ytp-ad-progress",
+        ".ytp-ad-progress-list",
+        '[class*="ytd-display-ad-"]',
+        '[layout*="display-ad-"]',
+        'a[href^="http://www.youtube.com/cthru?"]',
+        'a[href^="https://www.youtube.com/cthru?"]',
+        "ytd-action-companion-ad-renderer",
+        "ytd-banner-promo-renderer",
+        "ytd-compact-promoted-video-renderer",
+        "ytd-companion-slot-renderer",
+        "ytd-display-ad-renderer",
+        "ytd-promoted-sparkles-text-search-renderer",
+        "ytd-promoted-sparkles-web-renderer",
+        "ytd-search-pyv-renderer",
+        "ytd-single-option-survey-renderer",
+        "ytd-video-masthead-ad-advertiser-info-renderer",
+        "ytd-video-masthead-ad-v3-renderer",
+        "YTM-PROMOTED-VIDEO-RENDERER",
+    ];
+    /**
+     * Adds CSS to the page
+     */
+    const hideElements = () => {
+        const selectors = hiddenCSS;
+        if (!selectors) {
+            return;
         }
-    });
-};
-/**
-* This function checks if the video ads are currently running
-* and auto-clicks the skip button.
-*/
-const autoSkipAds = () => {
-    // If there's a video that plays the ad at this moment, scroll this ad
-    if (document.querySelector(".ad-showing")) {
-        const video = document.querySelector("video");
-        if (video && video.duration) {
-            video.currentTime = video.duration;
-            // Skip button should appear after that,
-            // now simply click it automatically
-            setTimeout(() => {
-                const skipBtn = document.querySelector("button.ytp-ad-skip-button");
-                if (skipBtn) {
-                    skipBtn.click();
-                }
-            }, 100);
-        }
-    }
-};
-/**
-* This function overrides a property on the specified object.
-*
-* @param {object} obj object to look for properties in
-* @param {string} propertyName property to override
-* @param {*} overrideValue value to set
-*/
-const overrideObject = (obj, propertyName, overrideValue) => {
-    if (!obj) {
-        return false;
-    }
-    let overriden = false;
-    for (const key in obj) {
-        if (obj.hasOwnProperty(key) && key === propertyName) {
-            obj[key] = overrideValue;
-            overriden = true;
-        } else if (obj.hasOwnProperty(key) && typeof obj[key] === "object") {
-            if (overrideObject(obj[key], propertyName, overrideValue)) {
-                overriden = true;
-            }
-        }
-    }
-    return overriden;
-};
-/**
-* Overrides JSON.parse and Response.json functions.
-* Examines these functions arguments, looks for properties with the specified name there
-* and if it exists, changes it's value to what was specified.
-*
-* @param {string} propertyName name of the property
-* @param {*} overrideValue new value for the property
-*/
-const jsonOverride = (propertyName, overrideValue) => {
-    const nativeJSONParse = JSON.parse;
-    JSON.parse = (...args) => {
-        const obj = nativeJSONParse.apply(this, args);
-        // Override it's props and return back to the caller
-        overrideObject(obj, propertyName, overrideValue);
-        return obj;
+        const rule = selectors.join(", ") + " { display: none!important; }";
+        const style = document.createElement("style");
+        style.textContent = rule;
+        document.head.appendChild(style);
     };
-    // Override Response.prototype.json
-    Response.prototype.json = new Proxy(Response.prototype.json, {
-        async apply(...args) {
-            // Call the target function, get the original Promise
-            const result = await Reflect.apply(...args);
-            // Create a new one and override the JSON inside
-            overrideObject(result, propertyName, overrideValue);
-            return result;
-        },
-    });
-};
-// Removes ads metadata from YouTube XHR requests
-jsonOverride("adPlacements", []);
-jsonOverride("playerAds", []);
-// Applies CSS that hides YouTube ad elements
-hideElements();
-// Some changes should be re-evaluated on every page change
-hideDynamicAds();
-autoSkipAds();
-observeDomChanges(() => {
+    /**
+     * Calls the "callback" function on every DOM change, but not for the tracked events
+     * @param {Function} callback callback function
+     */
+    const observeDomChanges = callback => {
+        const domMutationObserver = new MutationObserver(mutations => {
+            callback(mutations);
+        });
+        domMutationObserver.observe(document.documentElement, {
+            childList: true,
+            subtree: true,
+        });
+    };
+    /**
+     * This function is supposed to be called on every DOM change
+     */
+    const hideDynamicAds = () => {
+        const elements = document.querySelectorAll("#contents > ytd-rich-item-renderer ytd-display-ad-renderer");
+        if (elements.length === 0) {
+            return;
+        }
+        elements.forEach(el => {
+            if (el.parentNode && el.parentNode.parentNode) {
+                const parent = el.parentNode.parentNode;
+                if (parent.localName === "ytd-rich-item-renderer") {
+                    parent.style.display = "none";
+                }
+            }
+        });
+    };
+    /**
+     * This function checks if the video ads are currently running
+     * and auto-clicks the skip button.
+     */
+    const autoSkipAds = () => {
+        // If there's a video that plays the ad at this moment, scroll this ad
+        if (document.querySelector(".ad-showing")) {
+            const video = document.querySelector("video");
+            if (video && video.duration) {
+                video.currentTime = video.duration;
+                // Skip button should appear after that,
+                // now simply click it automatically
+                setTimeout(() => {
+                    const skipBtn = document.querySelector("button.ytp-ad-skip-button");
+                    if (skipBtn) {
+                        skipBtn.click();
+                    }
+                }, 100);
+            }
+        }
+    };
+    /**
+     * This function overrides a property on the specified object.
+     *
+     * @param {object} obj object to look for properties in
+     * @param {string} propertyName property to override
+     * @param {*} overrideValue value to set
+     */
+    const overrideObject = (obj, propertyName, overrideValue) => {
+        if (!obj) {
+            return false;
+        }
+        let overriden = false;
+        for (const key in obj) {
+            if (obj.hasOwnProperty(key) && key === propertyName) {
+                obj[key] = overrideValue;
+                overriden = true;
+            } else if (obj.hasOwnProperty(key) && typeof obj[key] === "object") {
+                if (overrideObject(obj[key], propertyName, overrideValue)) {
+                    overriden = true;
+                }
+            }
+        }
+        return overriden;
+    };
+    /**
+     * Overrides JSON.parse and Response.json functions.
+     * Examines these functions arguments, looks for properties with the specified name there
+     * and if it exists, changes it's value to what was specified.
+     *
+     * @param {string} propertyName name of the property
+     * @param {*} overrideValue new value for the property
+     */
+    const jsonOverride = (propertyName, overrideValue) => {
+        const nativeJSONParse = JSON.parse;
+        JSON.parse = (...args) => {
+            const obj = nativeJSONParse.apply(this, args);
+            // Override it's props and return back to the caller
+            overrideObject(obj, propertyName, overrideValue);
+            return obj;
+        };
+        // Override Response.prototype.json
+        Response.prototype.json = new Proxy(Response.prototype.json, {
+            async apply(...args) {
+                // Call the target function, get the original Promise
+                const result = await Reflect.apply(...args);
+                // Create a new one and override the JSON inside
+                overrideObject(result, propertyName, overrideValue);
+                return result;
+            },
+        });
+    };
+    // Removes ads metadata from YouTube XHR requests
+    jsonOverride("adPlacements", []);
+    jsonOverride("playerAds", []);
+    // Applies CSS that hides YouTube ad elements
+    hideElements();
+    // Some changes should be re-evaluated on every page change
     hideDynamicAds();
     autoSkipAds();
-});
+    observeDomChanges(() => {
+        hideDynamicAds();
+        autoSkipAds();
+    });
+})();