Manifest v3 update: Vivaldi is future-proofed with its built-in functionality

supermurs

I have noticed that Adguard is no longer blocking advertisements on YouTube. I have the same filters applied as previously when it was working fine.

If it is working for anybody else, please share what filters you have applied.

What's strange is that uBlock Lite is working fine with YouTube though.

luetage

@supermurs The internal blocker blocks youtube ads successfully too currently. Has been this way for a couple of months.

Catweazle

@luetage, yes, it does a good job, but the difference to uBO is, that the Vivaldi blocker is often detected by YT, which launch it's "adblocker not allowed bla, bla" pop-up. Because this you need also one of the embed redirect scripts to watch the Video.

luetage

@Catweazle I don’t use any of these scripts.

supermurs

@luetage said in Manifest v3 update: Vivaldi is future-proofed with its built-in functionality:

@supermurs The internal blocker blocks youtube ads successfully too currently. Has been this way for a couple of months.

Awesome!

Would you mind sharing the lists you have subscribed to with the internal blocker?

I've tried it but for me the ads still come on YouTube. I'd love to use only the internal blocker with no additional extensions.

luetage

@supermurs See https://forum.vivaldi.net/post/802536 and https://forum.vivaldi.net/post/360089.

supermurs

@luetage

Thanks, I'll give these a try!

Catweazle

You can try also this one

https://oisd.nl/setup/vivaldi

supermurs

@Catweazle

Thanks, I added https://big.oisd.nl and cleared the browser caches.

Catweazle

@supermurs, as said, works flawless, but for YouTube you need to install also the Embed Redirect script, because YouTube discover that you are using an adblocker. In this case you can open the Video embedded in a new tab if it appears blocked.
You can install the script direct as extension, downloading it in a folder and dragging it on the extension page in dev mode. The one from Kraust is the smallest with only 5 lines of code and works fine.

Catweazle

Another nice site for adblock sources, it even permits to generate specific adblock lists

https://blocklist.sefinek.net

supermurs

@Catweazle

Thanks, I installed the script too and will do more testing.

One thing I noticed is that I see links to sponsored videos on YouTube's front page, screenshot below:

Do you know if these could be blocked?

Catweazle

@supermurs, well, adblocking in YT is a continuos battle and not perfect possible with the Vivaldi blocker, but at least promotional videos on the frontpage also don't bother. Annoying are only the ads in the video, which are skipped by Vivaldi.

supermurs

@Catweazle

Yes, blocking the ads on the videos is most important!

crevilla

This post is deleted!

supermurs

I found a userscript which removes those sponsored videos!

https://greasyfork.org/en/scripts/523868-youtube-cleanup

fires3as0n

So, starting from June 2025 I should disable my Vivaldi updates to keep myself free from ads? Obviously, all those talks about manifest v3 security is a lie, and its only purpose is to limit adblockers. Since google can not deal with youtube adblockers in any other way.

Hadden89

@fires3as0n you can try ubo lite or adguard which are already mv3.

The native blocker might fail on YouTube and blocking updates is not a good solution in the long term (you will banned from sites)

Catweazle

@fires3as0n, @Hadden89, the Vivaldi blocker works fine, but is discovered by YT, but not using it together with uBO light. uBO light alone isn't so effective as the Vivaldi blocker, but in change make it invisible for YT.

Test

Vivaldi blocker alone 98%
uBO light alone 67%
Vivaldi + uBO light 100%

barbudo2005

@Catweazle

I can't pass up your post.

1.- It has been said ad nauseam in this forum and in other forums regarding adblockers that it is highly negative to use two together.

2.- You can do what you want, but you should not take it for good, because you misinform new users who do not know about it. Be more careful with your reputation, which can play a trick on new users.

3.- The internet is also full of information that adblocker tests are useless. Let's see what Grok collects:

"Flawed Methods:

Many of these sites use shaky testing setups. For example, they might check for specific domains or elements (like a div with a class name) that aren’t actually tied to real ads or trackers. Sources like Brave’s blog point out that some test for “non-existent” or irrelevant targets, making results misleading. If a blocker doesn’t “pass,” it might still be great against actual threats.

No Real-World Context:

These tests often run in a bubble—static pages with fake or outdated ad setups. Real websites adapt, using anti-adblock tech or new ad delivery methods (e.g., Google and Facebook’s ever-evolving tricks). A test site can’t mimic that arms race, so a high score might not mean much on, say, YouTube or a news site.

Bias and Manipulation:

Some ad blockers tweak their filters to ace these tests, not to improve real blocking. Brave’s mentioned how uBlock Origin and AdGuard have added workarounds just to look good on these sites, which skews the picture. Plus, test sites might favor certain blockers (intentionally or not), muddying the waters.

What Happens If You Rely on Them:

False Confidence: A 100/100 score might make you think your blocker’s perfect, but then you hit a site with sneaky ads it misses. Posts on X and Reddit echo this—users brag about test scores, only to find ads slipping through elsewhere.

Wasted Time:

You could end up chasing a “better” blocker based on a test, when your current one’s fine for your actual browsing. Performance varies by site, device, and even your filter lists, not just a test page.

A Better Way to Judge:

Real-World Use:

Browse sites you actually visit—YouTube, news pages, social media—with your ad blocker on. Note what gets through. This beats a test site’s artificial setup every time.
Resource Use: Check how much CPU or memory the blocker uses (via Task Manager or Activity Monitor). Two blockers might tie in tests, but one could slow your device more.

Community Feedback:

Look at what users say on forums like Reddit’s r/Adblock or r/uBlockOrigin. They’ll flag real issues—like uBlock Origin crushing it on trackers or AdGuard struggling with YouTube ads—way better than a test site’s snapshot.

Features Matter:

Decide what you need—tracker blocking, cosmetic filtering (hiding ad spaces), or network-wide coverage (like Pi-hole). Test sites don’t weigh that stuff, but it’s what separates good from great."

4.- To top it off, you are doing a disservice to the built-in adblocker, because when it improves and includes more extensive CSS and other commands that uBO Lite uses, the interactions will increase as well as the problems.

Then old and new users who use “your methodology”, will say that the improved built-in has turned out to be worse than before.