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I tried adding a Google Custom Search Engine to my Firefox search bar. The search URL Firefox created looked something like this -- containing <my-custom-search-engine-ID> and the <query>:<my-custom-search-engine-id>?search=<my-query>

But -- for some reason, this direct URL gives a 400 error: "400. That’s an error. Your client has issued a malformed or illegal request."

I can still use my Custom Search Engine, but only directly from the Google page. A couple of years ago this kind of direct linking/querying worked, though. What has Google changed since, and how can I find out the direct URL to my GCS queries?

Thanks for any help!

EDIT: A working solution seems to be creating a custom search.html page (using the code obtained from your GCSE settings). But maybe a direct link to Google's default results page is still possible as well?

share|improve this question
Please add answers as separate answers and mark them as accepted. Don't edit them into your question. – nixda Aug 19 '13 at 16:29
it was something I figured out myself, not an answer proposed by others. But, sure, I'll just answer my question myself then. Thanks for pointing out! – marttt Aug 20 '13 at 11:16
This case happens often and the site encourages users to answer their own questions. There is nothing immoral about it. :) – nixda Aug 20 '13 at 12:49
@marttt does this solution still work ? no luck with it here – hulkingtickets Dec 23 '15 at 18:49
@hulkingtickets no idea, i havent hacked around with my cse for quite a while. sorry. – marttt Dec 28 '15 at 9:29

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