<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=463876) </details> <!--IssueSummary end--> ### Problem to solve A customer tried to install VSCode extension 'Microsoft Edge Tools for VSCode' but encountered error message " 'The Microsoft Edge Tools for VS Code' extension is not available in GitLab Web IDE for Web".  Additional observations are; * GitLab remote workspace VSCode extension is limited to those listed in https://open-vsx.org/, due to licensing concerns. * The above extension is a fork by 'ms-edgedevtools', not the official plugin from microsoft * @vtak Extension interpret the environment as 'web' although a full fledged server is running behind, and thus all capabilities should be available. * Testing with GitPod also return similar error, which might interpret the issue will be with the extension. * In the [VS Code documentation](https://code.visualstudio.com/docs/editor/vscode-web#\_extensions), it reflects that warning icon will be reflected on non-installable extension but this is not visible. If we download the [.vsix](https://marketplace.visualstudio.com/items?itemName=ms-edgedevtools.vscode-edge-devtools) file from official marketplace and install it in the Workspace, we get the following error. The "Learn more" in the screenshot points to https://code.visualstudio.com/api/advanced-topics/remote-extensions#architecture-and-extension-types . {width=1263 height=172} If we install the edge plugin in local VSCode, we can install and run it successfully.  <!-- triage-serverless v3 PLEASE DO NOT REMOVE THIS SECTION --> *This page may contain information related to upcoming products, features and functionality. It is important to note that the information presented is for informational purposes only, so please do not rely on the information for purchasing or planning purposes. Just like with all projects, the items mentioned on the page are subject to change or delay, and the development, release, and timing of any products, features, or functionality remain at the sole discretion of GitLab Inc.* <!-- triage-serverless v3 PLEASE DO NOT REMOVE THIS SECTION -->