YouTube Dislike Viewer for Opera & Opera GX
Opera and Opera GX are Chromium-based browsers that support Chrome extensions — including the Return YouTube Dislike extension. This guide walks you through installation, troubleshooting, and how to use our free online tool as a no-install alternative.
Our YouTube dislike viewer works in Opera and Opera GX without any extension. Paste any video URL and see dislikes instantly.
Does Opera Support YouTube Dislike Extensions?
Yes — both Opera and Opera GX are built on the Chromium engine, the same foundation that powers Google Chrome. This means they are fully compatible with Chrome extensions. The Return YouTube Dislike extension, which provides automatic YouTube dislike display, can be installed on Opera and Opera GX directly from the Chrome Web Store.
Opera GX is the gaming-focused variant of Opera, featuring CPU/RAM limiters, Discord integration, and a customizable dark interface popular among gamers. Its extension support is identical to standard Opera — any Chrome extension that works in Opera also works in Opera GX without modification.
How to Install the YouTube Dislike Viewer Extension on Opera
Open Opera and Check Chrome Extension Support
Open Opera or Opera GX. Navigate to opera://extensions in the address bar. In most modern versions of Opera (released after 2016), Chrome extension support is already built in. You will see a toggle labeled 'Allow extensions from other stores' — make sure this is enabled.
Enable 'Allow Extensions from Other Stores'
If the Chrome Web Store warning appears when you try to install an extension, click 'Allow' or enable the 'Allow extensions from other stores' toggle in opera://extensions. This one-time setting allows Opera to install extensions packaged for Chrome.
Visit the Chrome Web Store
In Opera or Opera GX, navigate to chrome.google.com/webstore. Despite the name, this store works in Opera because Opera is Chromium-based. Search for 'Return YouTube Dislike' in the store's search box.
Install Return YouTube Dislike
Click on the Return YouTube Dislike extension in the search results. On the extension page, click 'Add to Chrome' (the button text says Chrome even in Opera — this is normal). A confirmation popup will appear; click 'Add extension'.
Verify on YouTube
Navigate to youtube.com and open any video. The estimated dislike count will now appear automatically next to the like button below the video player. Opera GX users will see the same result — the extension functions identically in both browser variants.
Opera GX Specific Notes
Opera GX includes a built-in feature called GX Control that limits the CPU and RAM usage of browser tabs. This does not interfere with the Return YouTube Dislike extension's functionality — the extension's API calls are extremely lightweight (under 5KB per request) and complete in milliseconds, well within any resource constraints.
Opera GX also includes a built-in ad blocker called Opera Ad Blocker. In rare cases, aggressive ad blocking filter lists may block the API endpoint returnyoutubedislikeapi.com. If you install the extension but see no dislike counts, try disabling the Opera ad blocker for youtube.com or whitelisting the API domain in the ad blocker settings.
Opera GX users on the Early Access or Developer channel may occasionally experience extension compatibility issues after Opera GX updates its Chromium base. If the extension stops working after an Opera GX update, check for an extension update in opera://extensions and reload any open YouTube tabs.
Using Our Online Tool in Opera — No Extension Needed
If you prefer not to install extensions, our free YouTube dislike viewer online works perfectly in both Opera and Opera GX. Simply visit youtubedislikeviewer.org, paste any YouTube video URL into the input field, and click View 👎. Results appear in under a second, showing the estimated like count, dislike count, total view count, upload date, and a visual like-to-dislike ratio bar.
The online tool is particularly useful for Opera GX users who want to keep their browser lean and extension-free, while still having on-demand access to YouTube dislike data. It uses the same Return YouTube Dislike API as the extension, so the data and accuracy are identical.
You can also bookmark the online tool or add it to Opera's Speed Dial for quick access. For checking individual videos, the workflow is: copy the YouTube URL from your Opera address bar → switch tab to youtubedislikeviewer.org → paste → view results. Takes under ten seconds per video.
🔧 Troubleshooting Opera YouTube Dislike Viewer
Fix: Make sure 'Allow extensions from other stores' is enabled in opera://extensions. This setting must be turned on before visiting the Chrome Web Store for the installation to proceed.
Fix: Hard reload the YouTube tab (Ctrl+Shift+R). Check opera://extensions to confirm the extension is enabled. Try temporarily disabling Opera's built-in ad blocker for youtube.com.
Fix: Go to Opera GX settings → Basic → Block ads. Click the gear icon and add returnyoutubedislikeapi.com to the exceptions list. Alternatively, use our online tool as it is unaffected by this issue.
Fix: This may indicate the Return YouTube Dislike API is temporarily down. Visit returnyoutubedislikeapi.com/votes?videoId=dQw4w9WgXcQ directly to test connectivity. If the page returns an error, the service may be experiencing downtime — try again later.