Hi P-02E, Thank you for reporting this. I understand that there are crashes on pages when they load on mobile. In order to further troubleshoot can you please add the information on the [about:support] page in the mobile Firefox browser. If there are crash reports on this page can you also provide the ids of the crashes.

This will help further investigate the issue. Currently a note 3 samsung did not crash when I tested, but this does not mean it is not on yours. The device information is also helpful for developers to further investigate crashes in Firefox for Android.

Thank you and we are looking forward to your reply.

Thank you for your reply. I paste clipboard of "about:support" below.

{

 "application": {
   "name": "Fennec",
   "version": "30.0",
   "userAgent": "Mozilla/5.0 (Android; Mobile; rv:30.0) Gecko/30.0 Firefox/30.0",
   "supportURL": "http://support.mozilla.org/1/mobile/30.0/Android/ja/"
 },
 "crashes": {
   "submitted": [],
   "pending": 0
 },
 "modifiedPreferences": {
   "browser.cache.disk.capacity": 204800,
   "browser.cache.disk.smart_size.first_run": false,
   "browser.cache.disk.smart_size.use_old_max": false,
   "browser.search.suggest.enabled": true,
   "browser.startup.homepage_override.mstone": "30.0",
   "extensions.lastAppVersion": "30.0",
   "network.cookie.prefsMigrated": true,
   "storage.vacuum.last.index": 0
 },
 "graphics": {
   "numTotalWindows": 1,
   "numAcceleratedWindows": 1,
   "windowLayerManagerType": "OpenGL",
   "windowLayerManagerRemote": true,
   "adapterDescription": "Model: P-02E, Product: P_02E, Manufacturer: PANASONIC, Hardware: pana3_2, OpenGL: Qualcomm -- Adreno (TM) 320 -- OpenGL ES 2.0 V@6.0 AU@  (CL@)",
   "adapterVendorID": "Qualcomm",
   "adapterDeviceID": "Adreno (TM) 320",
   "adapterRAM": "",
   "adapterDrivers": "",
   "driverVersion": "OpenGL ES 2.0 V@6.0 AU@  (CL@)",
   "driverDate": "",
   "webglRenderer": "Qualcomm -- Adreno (TM) 320",
   "info": {
     "AzureCanvasBackend": "skia",
     "AzureSkiaAccelerated": 1,
     "AzureFallbackCanvasBackend": "none",
     "AzureContentBackend": "cairo"
   }
 },
 "javaScript": {
   "incrementalGCEnabled": true
 },
 "accessibility": {
   "isActive": false,
   "forceDisabled": 0
 },
 "libraryVersions": {
   "NSPR": {
     "minVersion": "4.10.6",
     "version": "4.10.6"
   },
   "NSS": {
     "minVersion": "3.16 Basic ECC",
     "version": "3.16 Basic ECC"
   },
   "NSSUTIL": {
     "minVersion": "3.16",
     "version": "3.16"
   },
   "NSSSSL": {
     "minVersion": "3.16 Basic ECC",
     "version": "3.16 Basic ECC"
   },
   "NSSSMIME": {
     "minVersion": "3.16 Basic ECC",
     "version": "3.16 Basic ECC"
   }
 },
 "userJS": {
   "exists": false
 },
 "extensions": []

}

Ok check this site to make sure the webgl is updated: http://get.webgl.org/

For the adreno there is some page load errors being seen in the hardware on the HTC as well: https://bugzilla.mozilla.org/show_bug.cgi?id=751073 I think this bug also may be related as the drivers for this hardware is not blacklisted atm. https://bugzilla.mozilla.org/show_bug.cgi?id=724103

If we have more information for these bugs, the next troubleshooting info for these sites would be recorded in Remote Debugging to capture troubleshooting logs. Remote Debugging Firefox for Android Instructions

Or to disable the webgl driver:

1. In the address bar, type about:config, without any http:// or www
2. Click the button labeled «I'll be careful, I promise!»
3. In Search field, enter webgl.disabled string
4. Toggle webgl.disabled to true to disable WebGL, or to false to enable WebGL, please do not confuse

Please post back with the results. Those bugs could use the info as well. Thank you.

I cheked this site: http://get.webgl.org/ I can see spinning cube with FIrefox mobile 30. And after toggle "webgl.disabled" to "TRUE", I see "it is disabled or unavailable" instead of cube.

True or false, In both cases, I cannot load this page. https://support.mozilla.org/ja/questions/1005515?fpa=1 Thank you.

Remote Debugging Log

GET https://support.mozilla.org/ja/questions/1005515 [HTTP/1.1 200 OK 1363ms] GET https://support.cdn.mozilla.net/static/css/mobile/common-min.css [HTTP/1.1 200 OK 374ms] GET https://support.cdn.mozilla.net/static/css/mobile/questions-min.css [HTTP/1.1 200 OK 375ms] GET https://support.cdn.mozilla.net/static/jsi18n/ja/javascript.js [HTTP/1.1 200 OK 484ms] GET https://support.cdn.mozilla.net/static/js/mobile/common-min.js GET https://support.cdn.mozilla.net/static/js/mobile/questions-min.js

I am sorry that remembering becomes late. Firefox27 was normal. It came to crash after Firefox28.

P-02E I also added this information to the second bug. It looks like it is blocked, but since it crashes in mobile wether it is true or false it sounds like something may also be affecting it. Another bug was disk space, but I will ask on irc be back in a sec.

Thank you. Free disk space of internal storage is 13.9GB.