User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0 Steps to reproduce: To reproduce the issue you must have a cpm above 600 ( i guess) anyhow, type any pre-url into the url bar rapidly, and try to click on a result just as rapidly, and you will find yourself on a google search result of a totally irrelevant (but in characters kinda-alike) page. Actual results: clicking on the suggestions when typing anything into the url bar, if you are doing it rapid enough, it takes you to a google search result Expected results: it should take me to the site i clicked on.

examples: if you have esea.com as a frequent site you visit, you'd normally type ese and the result would instantly appear as a suggestion. I click on it, and it takes me to a google search page about "esztergom" which is a hungarian city

i must also let you know this was not present in older release.

another example is to try to type whatsapp, proceed till wha, and it still outputs a search result for WHIRPOoL

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0 Build ID: 20181001155545 Hi reporter, Thank you for taking the time to add this report. However, I could not reproduce this issue on the latest 62 release build or 64 Nightly build (20181018123730). Whenever I type just a few characters rapidly, from a frequent site I visit, the 1st result is always the expected one. You did mention the CPM, but unfortunately, in all honesty, I don't really know what CPM is (Compressed pattern matching? / Combinatorial pattern matching? ), or how I can verify / access / alter it so I can better verify your report. Maybe you could elaborate on that. Given that the issue seems to be related to something that is specific to your setup (the CPM above 600) and the fact that you did not encounter it in prior releases, could you please try to find a regression range using Mozregression tool? Information on the tool is available at http://mozilla.github.io/mozregression/.

IS the problem still reproducible with Firefox 63?

Yes it is. Sorry for the late reply. I still stick to the statement as "if you type something in the address bar quickly that is not an url , and suggestions show up, if you manage to catch one of those suggestions BEFORE the list is complete, you are thrown away to a google search page."

I must also add that im having an i5 4440, 16gb ram, ssd(where ff is installed) and a gtx 1060. Hardware really should not be a problem.

I'd also like to point out that it is not a fault of slow reactiontime by me - the suggestion gets highlighted and the click seems legitimate.

this is literally the most annoying bug i've ever faced in firefox, and it wasnt present until recently.

Another guess is the likely interference betwen the suggestion of the history of firefox vs live google search suggestions.... I've never done anything like "regression" but if you elaborate what should i be doing, I'll be happy to commit.

^ | After testing it until now, i believe the 10th comment will be behind this bug. Sadly, this has gotten so annoying I'm forced to change browsers. I'll be looking @ my email to see if it has been resolved as FireFox is still my favourite

I'm sorry to hear you are considering changing browsers due to this issue, but as I mentioned in comment 4, there is explicit information about the regression tool and step by step guidance on how this works, here: http://mozilla.github.io/mozregression/ If the issue started to reproduce only recently, going through the hole regression process should not take long and there is a very good chance that you can find what triggered it. Please let us know what are your findings once you master the tool. Thank you.

I suspect the situation may be improved even just by toggling the "show search suggestions above history" option, that could be a workaround. Unfortunately this is complicate to reproduce.