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AG-41087 update kb about $header support in mv3 extension starting from v5.3 #789

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AG-41087 update kb about $header support in mv3 extension starting from v5.3 #789

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AG-41087 update $header about support in mv3 extension starting from …
maximtop Nov 19, 2025
df38cef
Update docs/general/ad-filtering/create-own-filters.md
maximtop Nov 20, 2025
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6 changes: 4 additions & 2 deletions docs/general/ad-filtering/create-own-filters.md
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Expand Up @@ -397,7 +397,7 @@ Basically, they just limit the scope of rule application.
| [$app](#app-modifier) | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| [$denyallow](#denyallow-modifier) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ |
| [$domain](#domain-modifier) | ✅ | ✅ | ✅ [*[1]](#domain-modifier-limitations) | ✅ | ✅ [*[1]](#domain-modifier-limitations) | ✅ [*[1]](#domain-modifier-limitations) | ✅ |
| [$header](#header-modifier) | ✅ | ✅ [*[2]](#header-modifier-limitations)| ❌ | ✅ [*[2]](#header-modifier-limitations) | ❌ | ❌ | ❌ |
| [$header](#header-modifier) | ✅ | ✅ [*[2]](#header-modifier-limitations)| ✅ [*[2]](#header-modifier-limitations) | ✅ [*[2]](#header-modifier-limitations) | ❌ | ❌ | ❌ |
| [$important](#important-modifier) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ |
| [$match-case](#match-case-modifier) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| [$method](#method-modifier) | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ | ❌ |
Expand Down Expand Up @@ -645,12 +645,14 @@ The modifier part, `":" h_value`, may be omitted. In that case, the modifier mat
[`$script`](#script-modifier) and [`$stylesheet`](#stylesheet-modifier). The rules with other modifiers
are considered invalid and will be discarded.

1. In AdGuard Browser Extension MV3, regular expressions in the `$header` modifier values are not supported.

:::

:::info Compatibility

Rules with the `$header` modifier are supported by AdGuard for Windows, AdGuard for Mac, AdGuard for Android, and AdGuard for Linux
with [CoreLibs] v1.11 or later, and AdGuard Browser Extension with [TSUrlFilter] v3.0.0 or later.
with [CoreLibs] v1.11 or later, and AdGuard Browser Extension with [TSUrlFilter] v3.0.0 or later (including AdGuard Browser Extension MV3 v5.3 or later).

:::

Expand Down