Google Chrome, the world’s most popular web browser, has warned users about extensions that may soon be removed due to non-compliance with new browser requirements. This move is part of Chrome’s transition to the Manifest V3 system, a change that could significantly impact many popular extensions, including ad blockers.
The shift to Manifest V3, adopted by other Chromium-based browsers such as Microsoft Edge, Opera, and Vivaldi, marks a significant evolution in browser extension architecture. Google has been gradually implementing this transition according to a predetermined schedule.
In June, Chrome began disabling extensions using the older Manifest V2 system in its Beta, Dev, and Canary channels. Now, these warnings appear in the stable version of Chrome, signaling a broader rollout of the new standards.
While users can still utilize older extensions, Chrome is actively alerting them about the impending end of support. When accessing the extensions page, users may encounter messages stating, “This extension may no longer be supported soon,” along with recommendations to switch to alternatives that comply with the new standards.
The Chrome Web Store has also started flagging extensions that will lose compatibility. For instance, the popular ad-blocking extension uBlock Origin now displays a notification warning that “This extension’s availability may end soon” due to non-compliance with Chrome’s new “best practices.”
This transition has raised concerns among users and developers, particularly regarding the future of ad-blocking extensions. Many worry that the new Manifest V3 system might limit the effectiveness of these tools, which have become essential for many internet users.
What do Chrome policies say?
Google’s support page mentions that “Chrome and the Web Store now require extensions to meet new standards” to protect user privacy and security better. It also notes that the browser “may turn off extensions that don’t meet these standards.”
If you run into an add-on that isn’t compatible, you have three options: find a similar one in the Web Store, disable it, or turn it on temporarily.
What is Manifest V3?
Manifest V3 is a new system introduced to improve how extensions work on Chrome and other Chromium-based browsers. Developed in 2018, it aims to boost privacy and security by introducing more APIs designed to protect user data and reduce trackers’ effectiveness.
Ad blockers are expected to be the most affected by these changes. With Manifest V3, the new APIs limit the capabilities of ad blockers and impose stricter usage restrictions. For example, the DeclarativeNetRequest API offers extensions less flexibility in setting up blocking rules.
As a result, ad blocker developers are creating new versions of their tools to align with the updated system, like uBlock Origin Lite. However, these tools will likely operate differently under the new framework.
