WebExtensions changes coming?

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barbaz
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Re: WebExtensions changes coming?

Post by barbaz »

*Always* check the changelogs BEFORE updating that important software!
barbaz
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Re: WebExtensions changes coming?

Post by barbaz »

Firefox will keep blocking webRequest in their Manifest v3 for now, implementing declarativeNetRequest as an additional API - https://www.youtube.com/watch?v=tpDFS-GUytg (7:16)

Though at 11:00, Rob says that "in the long term, we would like to encourage the use of declarative APIs and discourage blocking APIs if possible".
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barbaz
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Re: WebExtensions changes coming?

Post by barbaz »

Chrome will kill Manifest V2 in 2023 - https://developer.chrome.com/docs/exten ... v2-sunset/

Does Firefox have any clear plans to kill its Manifest V2?
*Always* check the changelogs BEFORE updating that important software!
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therube
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Re: WebExtensions changes coming?

Post by therube »

EFF: Chrome Users Beware: Manifest V3 is Deceitful and Threatening


(FF, being the follower that it is, you know where it will end up...)
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therube
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Re: WebExtensions changes coming?

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barbaz
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Re: WebExtensions changes coming?

Post by barbaz »

An experimental Manifest V3 content blocker by gorhill - https://chrome.google.com/webstore/deta ... hcphecmpfh
The description contains some interesting information about the impact of Manifest V3.
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therube
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Re: WebExtensions changes coming?

Post by therube »

WebExtension Manifest Version 3 support has been enabled by default in Nightly and Early Beta builds (starting from Firefox 106) – Bug 1789796

This change will allow developers to start testing “manifest_version: 3” extensions without flipping a pref (by installing temporarily or permanently with signing checks disabled)
Again, a reminder that Mozilla plans to continue support for the Manifest v2 blocking WebRequest API (this API powers, for example, uBlock Origin) while simultaneously supporting Manifest v3.
Have a Manifest v2 WebExtension that you want to migrate? Here’s our migration guide!
https://blog.nightly.mozilla.org/2022/0 ... issue-124/
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barbaz
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Re: WebExtensions changes coming?

Post by barbaz »

Thanks for the link therube.

From the mentioned migration guide -
https://extensionworkshop.com/documentation/develop/manifest-v3-migration-guide/ wrote:The new Scripting API takes over the features of tabs.insertCSS(), tabs.removeCSS(), and tabs.executeScript() and adds capabilities to register, update, and unregister content scripts at runtime.

Also, the code parameter is removed so that arbitrary strings can no longer be executed. This API requires the scripting permission. So, you need to move any arbitrary strings executed as scripts to files and rewrite your code to use the Scripting API.
I have some extensions that use contentScripts.register() with string code so that dynamically-set variables can be passed to a content script that's reliably run at document-start before any page script can run. What is the (Firefox) Manifest V3 way to achieve this?
*Always* check the changelogs BEFORE updating that important software!
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therube
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Re: WebExtensions changes coming?

Post by therube »

Just a matter of time, https://www.theregister.com/2022/11/17/ ... ill_begin/ signing Mv3 extensions for Firefox next week.
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barbaz
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Re: WebExtensions changes coming?

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https://blog.mozilla.org/addons/2022/11/17/manifest-v3-signing-available-november-21-on-firefox-nightly/ wrote: To be clear, Firefox will continue to support MV2 extensions for the foreseeable future, even as we welcome MV3 extensions in the release to general availability in Firefox 109 (January 17, 2023). Our goal has been to ensure a seamless transition from MV2 to MV3 for extension developers.
[...]
Towards the end of 2023 — once we’ve had time to evaluate and assess MV3’s rollout (including identifying important MV2 use cases that will persist into MV3) — we’ll decide on an appropriate timeframe to deprecate MV2. Once this timeframe is established, we’ll communicate MV2’s closure process with advance notice.
*Always* check the changelogs BEFORE updating that important software!
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