This idea has been merged into another idea. To comment or vote on this idea, please visit CF-I-3545 Selecting Forge and Fabric in the filters..
Currently, it is only possible to filter Minecraft mods by either modloader or by version. This makes it much more difficult to search for mods that are available for both your minecraft version and mod loader. The curseforge app currently does this automatically, but it is often easier to search through mods on the website.
Thank you for your suggestion, this is planned as part of the new website currently being built, which is planned to release in a few months. Keep an eye on our Twitter and Newsletter for updates!