- Nov 10, 2017
- 3,250
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Resuming the transition to Manifest V3 - Chrome for Developers
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developer.chrome.com
Resuming the transition to Manifest V3
- Thread starter CyberTech
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developer.chrome.com
Dynamic rules set limit increased from 5000 to 30000 (these can be updated by extension, static rules are only updated when extension updates). Better control over service worker lifetime is important for Extension developers. Safer user scripts API's and increasing maximum number of filters to be used simultaneously from 10 to 50 is important to both developers and users. 
Seems that Manifestv$ was a storm in a glass of water (as we say in Dutch).
Seems that Manifestv$ was a storm in a glass of water (as we say in Dutch).
JustInTime
Level 2
- Feb 21, 2022
- 58
I am no dev or coder but is ubo dynamic filtering (Medium mode and Hard mode) possible with mv3?Dynamic rules set limit increased from 5000 to 30000 (these can be updated by extension, static rules are only updated when extension updates). Better control over service worker lifetime is important for Extension developers. Safer user scripts API's and increasing maximum number of filters to be used simultaneously from 10 to 50 is important to both developers and users.
Seems that Manifestv$ was a storm in a glass of water (as we say in Dutch).
I have not coded in 20 years or so (now project leader of software development and implementation 4 days a week).
uBO has dynamic and static rules. Manifest v3 also has static and dynamic rules, but they are not the same (they only have the same name). uBO's dynamic rules overrule uBO's static rules, while UBO's static rules also have an $important option to overrule other static rules. When I read the specs of Manifestv3 there is only one hierarchy (not two as with uBO), so there does not seem to be an easy way to implement medium and hard mode (as higher hierarchy overruling 'normal' and 'important' rules).
That said, uBlockOrigin has (like AdGuard and to a lesser degree ABP) advanced rules which were not possible to implement with the Mv3 static and Mv3 dynamic rules which are applied by the browser itself. AdGuard solved this by injecting javascript into each webpage (similar to userscripts), so developers have found a way to work around (some of) the limitations of Mv3. Maybe GorHill finds a way to realize medium and hard mode in a different manner.
uBO has dynamic and static rules. Manifest v3 also has static and dynamic rules, but they are not the same (they only have the same name). uBO's dynamic rules overrule uBO's static rules, while UBO's static rules also have an $important option to overrule other static rules. When I read the specs of Manifestv3 there is only one hierarchy (not two as with uBO), so there does not seem to be an easy way to implement medium and hard mode (as higher hierarchy overruling 'normal' and 'important' rules).
That said, uBlockOrigin has (like AdGuard and to a lesser degree ABP) advanced rules which were not possible to implement with the Mv3 static and Mv3 dynamic rules which are applied by the browser itself. AdGuard solved this by injecting javascript into each webpage (similar to userscripts), so developers have found a way to work around (some of) the limitations of Mv3. Maybe GorHill finds a way to realize medium and hard mode in a different manner.
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- May 29, 2023
- 211
There is an option to extend support with 1 additional year via a policy.
Chrome Enterprise Policy List & Management | Documentation.
Despite Googles concessions, I still don't think uBOL will be as powerful as MV2 uBO:
Filtering capabilities which can't be ported to MV3.
Here's hoping that my main browser Firefox will keep allowing MV2 extensions...
Chrome Enterprise Policy List & Management | Documentation.
Example of a Windows policy for Chrome/Chromium (.reg file):
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Chromium]
"ExtensionManifestV2Availability"=dword:00000002
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome]
"ExtensionManifestV2Availability"=dword:00000002Despite Googles concessions, I still don't think uBOL will be as powerful as MV2 uBO:
Filtering capabilities which can't be ported to MV3.
Here's hoping that my main browser Firefox will keep allowing MV2 extensions...
- Mar 29, 2018
- 7,609
No. You may read about other types of µBO filtering that aren't available in MV3 here as @nicolaasjan posted in #5 above.
Nice find about the support continuation using GPO
The link you posted clearly states the limitations of Mv3 vs Mv2, but on the other hand how many users use these advanced Mv2 functions?
When I recall right @silversurfer posted he is very satisfied with UBOL (correct me when I am wrong).
I am currently using NextDNS with only 2 privacy list (AdGuardDNS and 1HostLight) and AdGuardMv3 with 3 small filters (Kees1958 Mv3, Bypass Clean Filter and uBlock Quick fixes) and don't see advertisements. AG Mv3 also has an ad-sniper tool to create cosmetic rules for left overs
____smal HOW TO create your own user rules in AG Mv3 when AD_SNIPER does not work ---
I know HTML , CSS and Javascript, so I can easily add an USER rule to create a cosmetic rule to hide an ID or CLASS.
Just move your mouse to the advertisement or part you want to hide and right-click Inspect.
The two examples below hide a DIVider (part of a website) with a certain ID (BBC.COM) or with a CLASS (RTLnieuws) containing part of a logical name.
Websites often use self explaining logical names for easy website maintenance. Usually wrapper is the highest level of a component, so choose that when you see it.
! BBC.com hide DIV's with ID containing "leaderbord"
bbc.com##div[id*="leaderboard"]
! RTL nieuws hide DIV's with CLASS containing "billboard-wrapper"
rtlnieuws.nl##div[class*="billboard-wrapper"]
The *= means contains, so in the last example a class called "top-billboard-wrapper 123randomABC" is also hidden.
Adding random numbers is a common anti-adblock tactic (makes it also harder to create custom rules using AdGuard's ad-sniper or uBO's element picker)
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- May 29, 2023
- 211
Btw, in Linux, you have to set the policy in the file:Nice find about the support continuation using GPO
/etc/chromium/policies/managed/ExtensionManifestV2Availability.jsonwith the following content:
{
"ExtensionManifestV2Availability": 2
}The permissions are important. Ensure that if the policy is a managed policy, chmod it so its only writeable by root or admin.
How to configure policies/preferences for Chromium
I'm trying to enforce an URLAllowlist for my local Chromium (Version 89.0.4389.90, Snap) on Ubuntu 20.04.2 LTS. According to Google the policy should be available. The Chromium project discusses the
askubuntu.com
- Mar 29, 2018
- 7,609
I believe it's questionable for the reason you cite.
- Mar 29, 2018
- 7,609
Probably a small minority.
You are correct. And for some more flexibility users can use Adguard and µBOL as you've posted elsewhere. These users would likely be a minority as well.
- Feb 21, 2022
- 109
I like Chromium based browsers, so will shift to Brave from June 2024 if MV3 dynamic rules are not enough to tackle Youtube. Brave in-built adblocker updates adblocking rules every 100 minutes so will be much better option than Chrome+uBOL.
AdGuard Mv3 YES (uses dynamic rules), uBOL at the moment NO, but with the increase of dynamic rules from 5000 to 30000 Gorhill might also add his quick fixes (like I have in AG Mv3) and some other uBO assets in uBOL using dynamic rules.
- Mar 29, 2018
- 7,609
Just saw this posted @Wilders. The author thanks contributors from the WebExtensions Community Group, especially the Adguard team.
developer.chrome.com
Improving content filtering in Manifest V3 | Blog | Chrome for Developers
developer.chrome.com
Mv3 was a big opportunity for Brave (that is why I tried it on Windows). Manifest v3 implementing a fair part of the extension builders request sort of reduced that (that is why I dropped it again), but Google's new anti-adblock trials with youtube might increase the attractiveness of Brave again. Who knows?
Yes post #2 is TLDRJust saw this posted @Wilders. The author thanks contributors from the WebExtensions Community Group, especially the Adguard team.
Improving content filtering in Manifest V3 | Blog | Chrome for Developers
Most likely does not apply to most here but Mr. Hill did put a kibbosh on unreal expectations for uBO Lite on the anticipated transition to MV3. I mean: this is still so fluid--MV3 first has to travel its way thru the test (DEV, Canary, etc) channels before it reaches the mainstream channels anyway. Who knows how long that will take past June (or whenever) 2024.
If anyone is interested, here is the link via the X post. I uploaded a snip of the post since some have made it ABUNDANTLY clear they don't have an acct. there.
github.com
Frequently asked questions (FAQ)
uBO Lite home (MV3). Contribute to uBlockOrigin/uBOL-home development by creating an account on GitHub.
github.com
- Mar 29, 2018
- 7,609
He's made that clear since starting MV3 development. Unlikely it will ever have some of Adguard MV3's advanced features.
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- May 29, 2023
- 211
Since I know virtually nothing about Flatpaks, I did some Googling and only found this:Thanks a lot,
https://github.com/flathub/org.chromium.Chromium/issues/37.And this:
https://github.com/flathub/org.chromium.Chromium#extension-pointsThis is what Bing Chat came up with:
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