added f and ff selenium helpers
added f and ff selenium helpers

Change-Id: I6ae5ffc2fabc052dda88fd9a22efa29be857c61b
Reviewed-on: https://gerrit.instructure.com/8980
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>
Reviewed-by: Ryan Florence <2d8900489f91ac272fd9ce9d5789db6522668ca2@instructure.com>

eCNAP/CANVAS,venturehive/canvas-lms,wrdsb/canvas-lms,sdeleon28/canvas-lms,efrj/canvas-lms,AndranikMarkosyan/lms,landonwilkins/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms,em2/canvas-lms,kyroskoh/canvas-lms,leftplusrightllc/canvas-lms,shidao-fm/canvas-lms,loganrun/pincan,grahamb/canvas-lms,merichar/canvas-lms,arrivu/hiring-site,arrivu/jigsaw-lms,merichar/canvas-lms,utkarshx/canvas-lms,Unow/canvas-lms,merichar/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,djbender/canvas-lms,nditech/red-innovadores-lms,leftplusrightllc/canvas-lms,Rvor/canvas-lms,redconfetti/canvas-lms,samuels410/greatlakes-lms,ankithbti/canvas_lms,sfu/canvas-lms,narigone/canvas,arrivu/arrivu-lms,utkarshx/canvas-lms,tgroshon/canvas-lms,sfu/canvas-lms,fronteerio/canvas-lms,arrivu/jigsaw-lms,HotChalk/canvas-lms,greyhwndz/canvas-lms,wimemx/Canvas,skmezanul/canvas-lms,matematikk-mooc/canvas-lms,redconfetti/canvas-lms,snehakachroo1/LSI_replica,nditech/red-innovadores-lms,skmezanul/canvas-lms,nditech/red-innovadores-lms,tgroshon/canvas-lms,em2/canvas-lms,wrdsb/canvas-lms,wimemx/Canvas,SwinburneOnline/canvas-lms,kyroskoh/canvas-lms,Jyaasa/canvas-lms,Unow/canvas-lms,rup/Tarrax,nditech/red-innovadores-lms,Jyaasa/canvas-lms,redconfetti/canvas-lms,eCNAP/CANVAS,eCNAP/CANVAS,sfu/canvas-lms,wye0220/shindig-canvas,djbender/canvas-lms,em2/canvas-lms,arrivu/arrivu-lms,jay3126/canvas-lms,sdeleon28/canvas-lms,Rvor/canvas-lms,juoni/canvas-lms,usmschuck/canvas,SwinburneOnline/canvas-lms,arrivu/hoodemo,ShreniiNepal/shrenii_lmp,sdeleon28/canvas-lms,va7map/canvas-lms,narigone/canvas,sfu/canvas-lms,ankithbti/canvas_lms,venturehive/canvas-lms,venturehive/canvas-lms,gbleydon/canvas-lms,redconfetti/canvas-lms,Rvor/canvas-lms,va7map/canvas-lms,Unow/ins,greyhwndz/canvas-lms,HotChalk/canvas-lms,Jyaasa/canvas-lms,snehakachroo1/LSI_replica,sli7246/canvas_branch,juoni/canvas-lms,kyroskoh/canvas-lms,utkarshx/canvas-lms,instructure/canvas-lms,arrivu/arrivu-lms,roxolan/canvas-lms,samuels410/greatlakes-lms,juoni/canvas-lms,icelab/canvas,va7map/canvas-lms,matematikk-mooc/canvas-lms,narigone/canvas,wimemx/Canvas,sfu/canvas-lms,arrivu/qibla-ecampus,snehakachroo1/LSI_replica,ShreniiNepal/shrenii_lmp,usmschuck/canvas,samuels410/greatlakes-lms,leftplusrightllc/canvas-lms,greyhwndz/canvas-lms,efrj/canvas-lms,sli7246/canvas_branch,dgynn/canvas-lms,gbleydon/canvas-lms,HotChalk/canvas-lms,loganrun/pincan,dgynn/canvas-lms,ankithbti/canvas_lms,snehakachroo1/LSI_replica,parbros/red-innovadores-lms,jay3126/canvas-lms,instructure/canvas-lms,va7map/canvas-lms,sfu/canvas-lms,narigone/canvas,Unow/ins,juoni/canvas-lms,grahamb/canvas-lms,jay3126/canvas-lms,shidao-fm/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,icelab/canvas,shidao-fm/canvas-lms,whalejasmine/canvas-lms,whalejasmine/canvas-lms,icelab/canvas,roxolan/canvas-lms,wrdsb/canvas-lms,eCNAP/CANVAS,ShreniiNepal/shrenii_lmp,tgroshon/canvas-lms,arrivu/qibla-ecampus,wye0220/shindig-canvas,usmschuck/canvas,antoniuslin/canvas-lms,fronteerio/canvas-lms,tgroshon/canvas-lms,rup/Tarrax,whalejasmine/canvas-lms,djbender/canvas-lms,arrivu/hoodemo,antoniuslin/canvas-lms,landonwilkins/canvas-lms,rup/Tarrax,ShreniiNepal/shrenii_lmp,wye0220/shindig-canvas,gbleydon/canvas-lms,arrivu/jigsaw-lms,HotChalk/canvas-lms,sfu/canvas-lms,efrj/canvas-lms,Rvor/canvas-lms,fronteerio/canvas-lms,antoniuslin/canvas-lms,landonwilkins/canvas-lms,sli7246/canvas_branch,roxolan/canvas-lms,whalejasmine/canvas-lms,utkarshx/canvas-lms,instructure/canvas-lms,landonwilkins/canvas-lms,usmschuck/canvas,AndranikMarkosyan/lms,skmezanul/canvas-lms,parbros/red-innovadores-lms,parbros/red-innovadores-lms,efrj/canvas-lms,leftplusrightllc/canvas-lms,Unow/ins,SwinburneOnline/canvas-lms,AndranikMarkosyan/lms,dgynn/canvas-lms,arrivu/hiring-site,loganrun/pincan,AndranikMarkosyan/lms,arrivu/qibla-ecampus,shidao-fm/canvas-lms,Unow/canvas-lms,matematikk-mooc/canvas-lms,jay3126/canvas-lms,Jyaasa/canvas-lms,skmezanul/canvas-lms,wrdsb/canvas-lms,roxolan/canvas-lms,matematikk-mooc/canvas-lms,grahamb/canvas-lms,dgynn/canvas-lms,kyroskoh/canvas-lms,SwinburneOnline/canvas-lms,sdeleon28/canvas-lms,arrivu/hoodemo,arrivu/hiring-site,fronteerio/canvas-lms,instructure/canvas-lms,antoniuslin/canvas-lms,instructure/canvas-lms,greyhwndz/canvas-lms,samuels410/greatlakes-lms