Is FlowMouse - Mouse Gestures Safe? — Extension Safety Profile

The extension requests broad host access to all URLs and the scripting permission. This allows it to inject code and read or modify content on every website you visit. While necessary for a mouse gesture tool to interpret gestures and execute commands like scrolling or tab switching, this level of access is highly sensitive and means the extension can technically see everything you do in the browser. It also asks for access to tabs and sessions, which lets it manage your open tabs and browsing sessions.

For productivity tools that require deep integration with browser controls, such access is typical but demands extra caution. A careful user should know that any extension with permission on all sites can be a valuable target for supply-chain attacks or could accidentally introduce bugs that affect page behavior. The developer's access and update practices are what keep such powerful tools safe over time.

Our assessment shows this extension has strong maintenance and a good community reputation, indicating it is actively developed and well-liked. However, the publisher identity is the weakest dimension, as the developer is listed as unknown. This lack of clear, established developer information makes it harder to fully evaluate accountability. The data privacy practices declared by the developer look responsible, but the lower identity score means you are trusting a largely anonymous entity with extensive control over your browsing.