Download Update to .NET Framework 3.5 SP1 for the .NET Framework Assistant 1.0 for Firefox from Official Microsoft Download Center

Hands type on a Surface Pro 6 with Type Cover

Surface Pro 6

Stand out from the ordinary

Person using Power BI Desktop

Power BI

Transform data into actionable insights with dashboards and reports

Update to .NET Framework 3.5 SP1 for the .NET Framework Assistant 1.0 for Firefox

Important! Selecting a language below will dynamically change the complete page content to that language.

Select Language:
Update to .NET Framework 3.5 SP1 for the .NET Framework Assistant 1.0 for Firefox is required to address several compatibility issues with version 1.0 of the extension.