Fixed sporadic utils_test failure (which could be reproduced when settings_test did not precede utils_test)
Fixed sporadic utils_test failure (which could be reproduced when settings_test did not precede utils_test)

cyrixhero/vimium,csmalin/vimium,poacher2k/vimium,smblott-github/vimium,mrmr1993/vimium,gdh1995/vimium,Aleroniponi/vimium,willsALMANJ/vimium,douglas-larocca/vimium,wildeyes/vimium,wildeyes/vimium,hhsue/vimium,decaffeinate-examples/vimium,PickRelated/vimium,wildeyes/vimium,csmalin/vimium,philc/vimium,crazypenguincode/vimium,justalittlenoob/vimium,tuchangwei/vimium,mrmr1993/vimium,cyrixhero/vimium,gdh1995/vimium,PrestanceDesign/vimium,philc/vimium,hhsue/vimium,poacher2k/vimium,elderbas/vimium,Lw-Cui/vimium,Robinson10240/vimium,elegantwww/vimium,mrmr1993/vimium,jb55/vimium-plus,PrestanceDesign/vimium,smblott-github/vimium,jb55/vimium-plus,smblott-github/vimium,hhsue/vimium,justalittlenoob/vimium,poacher2k/vimium,willsALMANJ/vimium,PrestanceDesign/vimium,elderbas/vimium,decaffeinate-examples/vimium,tuchangwei/vimium,cyrixhero/vimium,dimatter/vimium,VPashkov/vimium,decaffeinate-examples/vimium,bkudria/vimium,elegantwww/vimium,douglas-larocca/vimium,douglas-larocca/vimium,Robinson10240/vimium,willsALMANJ/vimium,zhangmin510/vimium,dimatter/vimium,zhangmin510/vimium,PickRelated/vimium,VPashkov/vimium,crazypenguincode/vimium,borgified/vimium,tuchangwei/vimium,justalittlenoob/vimium,zhangmin510/vimium,dimatter/vimium,Aleroniponi/vimium,borgified/vimium,elegantwww/vimium,bkudria/vimium,Aleroniponi/vimium,bkudria/vimium,VPashkov/vimium,gdh1995/vimium,Lw-Cui/vimium,Robinson10240/vimium,philc/vimium,elderbas/vimium,csmalin/vimium,PickRelated/vimium,borgified/vimium,Lw-Cui/vimium