Works Okay. But only problem (or say nuisance) is, it gets removed of its own every 15-20 hours. no reason no logic just vanishes from addon list. and you just have to keep reinstalling. one more thing noticed, just found that it crashes my whatsapp web & all google sites (viz. gmail, Gsearch, & even youtube) I need to exit from firefox. clear cache & then by restarting only i could use any google related site. Strange ! for now I have uninstalled browsec. will check in future. Hope dev team can find a solution to this.