The tricky part about SearX is that it runs on several domains, while uBlock Origin cosmetic filters need to be scoped to a given domain name. We'd need to add a parameter to specify the instance(s) on which you want the filter to be generated. If you want to follow up on this, would you mind opening an issue at https://github.com/xvello/letsblockit/issues/new?template=up... to help me with the testing?