fix firefox
fix firefox

volkanh/volkanh.github.io,overtakermtg/samples,webrtc/samples,todotobe1/samples,fitraditya/samples,guoweis/webrtc,Roarz/samples,fippo/webrtc,fitraditya/samples,kod3r/samples,akashrchoksi/newone,myself659/samples,b-cuts/samples,akashrchoksi/newone,fetterov/samples,volkanh/volkanh.github.io,smayoorans/samples,tsruban/samples,mvenkatesh431/samples,tsruban/samples,volkanh/volkanh.github.io,fippo/webrtc,oliverhuangchao/samples,kod3r/samples,shelsonjava/samples,smbale/samples,EmreAkkoyun/sample,procandi/samples,Edward-Shawn/samples,leehz/samples,virajs/samples,MahmoudFouad/samples,Edward-Shawn/samples,procandi/samples,oliverhuangchao/samples,mvenkatesh431/samples,leehz/samples,smbale/samples,b-cuts/samples,ralic/samples,smayoorans/samples,smbale/samples,todotobe1/samples,pquochoang/samples,pquochoang/samples,virajs/samples,MahmoudFouad/samples,mauricionr/samples,samdutton/webrtc,procandi/samples,overtakermtg/samples,Edward-Shawn/samples,ralic/samples,virajs/samples,ralic/samples,fitraditya/samples,akashrchoksi/newone,oliverhuangchao/samples,taylor-b/samples,shelsonjava/samples,shelsonjava/samples,mulyoved/samples,myself659/samples,guoweis/webrtc,mauricionr/samples,samdutton/webrtc,overtakermtg/samples,EmreAkkoyun/sample,leehz/samples,fetterov/samples,todotobe1/samples,guoweis/webrtc,smayoorans/samples,taylor-b/samples,kod3r/samples,mauricionr/samples,xdumaine/samples,mvenkatesh431/samples,EmreAkkoyun/sample,myself659/samples,xdumaine/samples,MahmoudFouad/samples,b-cuts/samples,webrtc/samples,xdumaine/samples,Roarz/samples,Roarz/samples,mulyoved/samples,pquochoang/samples,tsruban/samples,fetterov/samples,mulyoved/samples