install app dialog is unclear

[Jeff Abrahamson]

Some websites trigger a dialog asking if I'd like to install the (presumably HTML5) application to make it faster in the future. The responses permitted are yes and don't remind me again. I don't think the choice is binary. I'd expect yes and no as choices with a checkbox "do this every time in the future for this site" with a note about how to fix bad choices.

Many sites change enough that this feature gets triggered relatively often, which surely leads users to take the action that causes the dialog box not to appear.

Indeed, related, I'm not sure we explain very well to users why they should or shouldn't care about this dialog box. On what basis should a non-expert user reply in a given way?

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: firefox 38.0+build3-0ubuntu0.14.10.1
ProcVersionSignature: Ubuntu 3.16.0-38.52-generic 3.16.7-ckt10
Uname: Linux 3.16.0-38-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.14.7-0ubuntu8.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: jeff 6710 F.... pulseaudio
 /dev/snd/controlC0: jeff 6710 F.... pulseaudio
BuildID: 20150511103725
Channel: Unavailable
CurrentDesktop: i3
Date: Tue Jun 2 09:39:00 2015
DefaultProfileExtensions: extensions.sqlite corrupt or missing
DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
DefaultProfileLocales: extensions.sqlite corrupt or missing
DefaultProfilePrefSources: prefs.js
DefaultProfileThemes: extensions.sqlite corrupt or missing
EcryptfsInUse: Yes
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2013-12-21 (527 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
IpRoute:
 default via 192.168.2.1 dev eth0 proto static
 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.42.1
 192.168.2.0/24 dev eth0 proto kernel scope link src 192.168.2.152 metric 1
MostRecentCrashID: bp-68564099-21cb-4b42-8ef0-6e6582150506
Profile0Extensions: extensions.sqlite corrupt or missing
Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile0Locales: extensions.sqlite corrupt or missing
Profile0PrefSources: prefs.js
Profile0Themes: extensions.sqlite corrupt or missing
Profile2Extensions: extensions.sqlite corrupt or missing
Profile2IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile2Locales: extensions.sqlite corrupt or missing
Profile2PrefSources: prefs.js
Profile2Themes: extensions.sqlite corrupt or missing
Profile3Extensions: extensions.sqlite corrupt or missing
Profile3IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile3Locales: extensions.sqlite corrupt or missing
Profile3PrefSources: prefs.js
Profile3Themes: extensions.sqlite corrupt or missing
Profile4Extensions: extensions.sqlite corrupt or missing
Profile4IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile4Locales: extensions.sqlite corrupt or missing
Profile4PrefSources: prefs.js
Profile4Themes: extensions.sqlite corrupt or missing
Profiles:
 Profile0 - LastVersion=38.0/20150511103725 (In use)
 Profile1 (Default) - LastVersion=38.0/20150511103725 (In use)
 Profile2 - LastVersion=Safe Mode/Safe Mode (Out of date)
 Profile3 - LastVersion=38.0/20150511103725
 Profile4 - LastVersion=34.0/20141127110442 (Out of date)
RelatedPackageVersions:
 totem-mozilla 3.10.1-1ubuntu6
 rhythmbox-mozilla 3.0.3-1ubuntu2
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to utopic on 2014-11-20 (193 days ago)
WifiSyslog:
 Jun 2 08:45:11 siegfried kernel: [68100.056167] traps: xfig[16285] general protection ip:7f51c59ce75c sp:7ffe5bbc87c0 error:0 in xfig[7f51c5971000+159000]
 Jun 2 08:48:58 siegfried wpa_supplicant[1191]: message repeated 205 times: [ wlan0: CTRL-EVENT-SCAN-STARTED ]
 Jun 2 08:48:59 siegfried wpa_supplicant[1191]: nl80211: send_and_recv->nl_recvmsgs failed: -33
 Jun 2 08:50:01 siegfried wpa_supplicant[1191]: wlan0: CTRL-EVENT-SCAN-STARTED
dmi.bios.date: 01/09/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: SBC_2.1.0.333_13 X64
dmi.board.asset.tag: Base Board Asset Tag Unknown
dmi.board.name: fit-PC3
dmi.board.vendor: CompuLab
dmi.board.version: 2.3
dmi.chassis.asset.tag: Unknown
dmi.chassis.type: 9
dmi.chassis.vendor: CompuLab
dmi.chassis.version: Unknown
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrSBC_2.1.0.333_13X64:bd01/09/2013:svnCompuLab:pnfit-PC3:pvrUnknown:rvnCompuLab:rnfit-PC3:rvr2.3:cvnCompuLab:ct9:cvrUnknown:
dmi.product.name: fit-PC3
dmi.product.version: Unknown
dmi.sys.vendor: CompuLab