A browser extension for in-place signaling and assessment of misinformation enables users to assess the accuracy of any content on the web and view assessments from their trusted sources. The extension, based on the Trustnet platform, allows users to independently decide whom to trust for assessments and helps them identify misinformation. Through a two-week user study with 32 participants, the researchers explored how users perceive the tool, the types of content they want to assess, and the rationales they use in their assessments. The study found that users value the ability to assess content and see assessments from trusted sources, and that they want to assess a wide range of content, not just political news. The extension also places assessments next to outgoing links on web pages to help users identify misinformation even when they do not visit the page. The study highlights the need for decentralized approaches to content moderation and shows that users can effectively assess content accuracy using the tool. The extension provides a platform-agnostic solution for in-place signaling and assessment of misinformation, allowing users to moderate content for themselves and their social circle. The findings suggest that users can benefit from tools that enable them to assess content accuracy and see assessments from trusted sources, and that such tools can be used to improve fact-checking practices. The study also identifies the importance of user autonomy in content moderation and the need for tools that empower users to make informed decisions about the accuracy of content. The extension is an important step towards democratizing content moderation and enabling users to take an active role in identifying and addressing misinformation.A browser extension for in-place signaling and assessment of misinformation enables users to assess the accuracy of any content on the web and view assessments from their trusted sources. The extension, based on the Trustnet platform, allows users to independently decide whom to trust for assessments and helps them identify misinformation. Through a two-week user study with 32 participants, the researchers explored how users perceive the tool, the types of content they want to assess, and the rationales they use in their assessments. The study found that users value the ability to assess content and see assessments from trusted sources, and that they want to assess a wide range of content, not just political news. The extension also places assessments next to outgoing links on web pages to help users identify misinformation even when they do not visit the page. The study highlights the need for decentralized approaches to content moderation and shows that users can effectively assess content accuracy using the tool. The extension provides a platform-agnostic solution for in-place signaling and assessment of misinformation, allowing users to moderate content for themselves and their social circle. The findings suggest that users can benefit from tools that enable them to assess content accuracy and see assessments from trusted sources, and that such tools can be used to improve fact-checking practices. The study also identifies the importance of user autonomy in content moderation and the need for tools that empower users to make informed decisions about the accuracy of content. The extension is an important step towards democratizing content moderation and enabling users to take an active role in identifying and addressing misinformation.