DotNetBrowser 4.3.0

Default fonts configuration 

DotNetBrowser now lets you retrieve the fonts available on the system and use them as the browser’s default standard, serif, sans-serif, fixed-width, or mathematical font.

IReadOnlyList<Font> fonts = browser.Settings.DefaultFonts.Available;

Font font = fonts.First();

browser.Settings.DefaultFonts.Standard = font;
browser.Settings.DefaultFonts.Serif = font;
browser.Settings.DefaultFonts.SansSerif = font;
browser.Settings.DefaultFonts.FixedWidth = font;
browser.Settings.DefaultFonts.Mathematical = font;

string displayName = font.DisplayName;

Chromium 152.0.7977.65 

We upgraded Chromium to a newer version, which introduces 349 security fixes. Among them:

• CVE-2026-76034: Buffer overflow in WebGL
• CVE-2026-76036: Buffer overflow in Dawn
• CVE-2026-76017: Use after free in Chromoting
• CVE-2026-79282: Use after free in ANGLE
• CVE-2026-76033: Inappropriate implementation in CORS

See the Chromium release announcements for more details.

• August 18
• August 20
• August 25

Quality enhancements 

• Fixed a video playback failure on pages that deliver video through a custom scheme handled by InterceptRequestHandler.
• Fixed BrowserView flickering when resizing WinUI 3 windows in hardware-accelerated rendering mode.
• Fixed blurry rendering in Avalonia UI applications on scaled monitors by adding a per-monitor DPI awareness declaration to the application manifest template.

SBOM 

This section provides the Software Bill of Materials (SBOM) for DotNetBrowser 4.3.0 in CycloneDX format. The file lists the following software components:

• the third-party libraries used by DotNetBrowser,
• the Chromium build used by DotNetBrowser,
• the third-party components DotNetBrowser inherits from Chromium.

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