Firefox continues Manifest V2 support as Chrome disables MV2 ad-blockers
ID: f3a4724b-a3f6-5820-a261-e39d8d7a4d8e
STIX ID: report--f3a4724b-a3f6-5820-a261-e39d8d7a4d8e
Feed Name: Bleeping Computer
Mozilla reaffirmed it will continue supporting Manifest V2 in Firefox alongside Manifest V3, enabling powerful ad blockers like uBlock Origin to remain fully functional via support for `blockingWebRequest` and `declarativeNetRequest`. While MV3 enforcement in other browsers has led to some extensions being disabled or reduced in capability, Firefox cites user choice and its principles as reasons to keep MV2 available with no set deprecation timeline.
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