Rated 3 out of 5 stars

when i search the result open in too tabs

This review is for a previous version of the add-on (0.7.7.20110418.1-signed). 

Incompatibility?

Though I have not seen or heard this happen, chances are that this may be a result of some incompatibility with another addon. You might give it a try in a new profile or try by disabling addons that might affect the behavior. If you find anything, let me know so that it can be addressed on Omnibar or the incompatible addon. Thanks.