"Recent Web Searches" in Web Usage not showing

[shovon]

I'm using D-link DIR-615 E4, (Gargoyle v1.5.10).
Number of Searches to Save: 300
Firefox 23.0.1

But this isn't working, No matter what I search in google or in browser, it's showing "null" and a blank field. I attached a screenshot here:



I tested and searched with a Firefox Potable 13.0.1 browser, it works! But it can't take log in any searches using updated browsers.

[ispyisail]

https instead of http ???

[shovon]

http, not https.