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Runtime Server Error in '/' Application and a 'create root file to fix' dunno how to do this.

Posted

For several weeks Firefox crashes when I close it down for the day. Firefox error message box sends crash report. Today I got I think from Firefox: please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off". <configuration>

   <system.web>
       <customErrors mode="Off"/>
   </system.web>

</configuration> Then there's a second file it says to add. Umm, where/how? The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL. <configuration>

   <system.web>
       <customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>
   </system.web>

</configuration> Okay, but under ProgramFiles>Firefox there are several folders and none of them say "root" so where am I to create said file and how do I get it there? And then what? I sure don't want to crash Firefox any more than it does as it at least still works.

For several weeks Firefox crashes when I close it down for the day. Firefox error message box sends crash report. Today I got I think from Firefox: please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off". <!-- Web.Config Configuration File --> <configuration> <system.web> <customErrors mode="Off"/> </system.web> </configuration> Then there's a second file it says to add. Umm, where/how? The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL. <!-- Web.Config Configuration File --> <configuration> <system.web> <customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/> </system.web> </configuration> Okay, but under ProgramFiles>Firefox there are several folders and none of them say "root" so where am I to create said file and how do I get it there? And then what? I sure don't want to crash Firefox any more than it does as it at least still works.

Chosen solution

Is/was the page background a pale yellow color? That message is not for you. It's the instructions of Microsoft's IIS web server to the web developer or webmaster on how to make error pages more intelligible so they can fix a glitch in their web application.

Occasionally that kind of glitch is caused by mismatched files or cookies, so you might be able to work around it by doing "the usual":

When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Bypass Firefox's Cache

Use Ctrl+Shift+r to reload the page fresh from the server.

Alternately, you also can clear Firefox's cache completely using:

"3-bar" menu button (or Tools menu) > Options > Advanced

On the Network mini-tab > Cached Web Content : "Clear Now"

If you have a large hard drive, this might take a few minutes.

(2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either:

  • right-click and choose View Page Info > Security > "View Cookies"
  • (menu bar) Tools > Page Info > Security > "View Cookies"

In the dialog that opens, you can remove the site's cookies individually.

Then try reloading the page. Does that help?


Regarding crashes, when Firefox crashes, it usually records information about what was happening at that moment. You can submit that data to Mozilla and share it with forum volunteers to see whether it points to the solution. Please check the support article "Firefox crashes - Troubleshoot, prevent and get help fixing crashes" (especially the last section) for steps to get those crash report IDs, and then post some of the recent ones here.

Read this answer in context 18

Additional System Details

Installed Plug-ins

  • thinkorswim loader
  • thinkDesktop configuration loader
  • Shockwave Flash 15.0 r0
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.11
  • Next Generation Java Plug-in 10.67.2 for Mozilla browsers
  • ActiveTouch General Plugin Container Version 105
  • Citrix Online App Detector Plugin
  • NPWLPG

Application

  • Firefox 32.0.1
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0
  • Support URL: https://support.mozilla.org/1/firefox/32.0.1/WINNT/en-US/

Extensions

  • Lightbeam 1.0.10.2 (jid1-F9UJ2thwoAm5gQ@jetpack)
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • Anti-Banner 13.0.1.4401 (anti_banner@kaspersky.com) (Inactive)
  • Dangerous Websites Blocker 13.0.1.4401 (content_blocker@kaspersky.com) (Inactive)
  • fcreward.100770.b 1.300.436 ({003e1c8f-ebd6-f074-7551-4b31c0f547ec}) (Inactive)
  • Kaspersky URL Advisor 13.0.1.4401 (url_advisor@kaspersky.com) (Inactive)
  • Safe Money 13.0.1.4401 (online_banking@kaspersky.com) (Inactive)
  • Virtual Keyboard 13.0.1.4401 (virtual_keyboard@kaspersky.com) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: AMD Radeon HD 6450
  • adapterDescription2:
  • adapterDeviceID: 0x6779
  • adapterDeviceID2:
  • adapterDrivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
  • adapterDrivers2:
  • adapterRAM: 1024
  • adapterRAM2:
  • adapterVendorID: 0x1002
  • adapterVendorID2:
  • clearTypeParameters: Gamma: 2200 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 400
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.2.9200.16571
  • driverDate: 12-19-2012
  • driverDate2:
  • driverVersion: 9.12.0.0
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'direct2d', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 2
  • numTotalWindows: 2
  • webglRenderer: Google Inc. -- ANGLE (AMD Radeon HD 6450 Direct3D9Ex vs_3_0 ps_3_0)
  • windowLayerManagerRemote: False
  • windowLayerManagerType: Direct3D 10

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 358400
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
  • browser.cache.disk.smart_size_cached_value: 358400
  • browser.cache.frecency_experiment: 3
  • browser.places.smartBookmarksVersion: 7
  • browser.search.useDBForOrder: True
  • browser.sessionstore.upgradeBackup.latestBuildID: 20140911151253
  • browser.startup.homepage_override.buildID: 20140911151253
  • browser.startup.homepage_override.mstone: 32.0.1
  • browser.tabs.warnOnClose: False
  • dom.max_script_run_time: 0
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 32.0.1
  • font.internaluseonly.changed: True
  • gfx.direct3d.last_used_feature_level_idx: 0
  • gfx.direct3d.prefer_10_1: True
  • keyword.URL: http://www.google.com/search?btnI=I%27m+Feeling+Lucky&ie=UTF-8&oe=UTF-8&q=
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1410810076
  • places.history.expiration.transient_current_max_pages: 104858
  • places.history.expiration.transient_optimal_database_size: 167772160
  • plugin.disable_full_page_plugin_for_types: application/pdf
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  • privacy.cpd.formdata: False
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  • privacy.donottrackheader.enabled: True
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  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1409067529

Misc

  • User JS: No
  • Accessibility: No
jscher2000
  • Top 10 Contributor
7298 solutions 59416 answers

Chosen Solution

Is/was the page background a pale yellow color? That message is not for you. It's the instructions of Microsoft's IIS web server to the web developer or webmaster on how to make error pages more intelligible so they can fix a glitch in their web application.

Occasionally that kind of glitch is caused by mismatched files or cookies, so you might be able to work around it by doing "the usual":

When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Bypass Firefox's Cache

Use Ctrl+Shift+r to reload the page fresh from the server.

Alternately, you also can clear Firefox's cache completely using:

"3-bar" menu button (or Tools menu) > Options > Advanced

On the Network mini-tab > Cached Web Content : "Clear Now"

If you have a large hard drive, this might take a few minutes.

(2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either:

  • right-click and choose View Page Info > Security > "View Cookies"
  • (menu bar) Tools > Page Info > Security > "View Cookies"

In the dialog that opens, you can remove the site's cookies individually.

Then try reloading the page. Does that help?


Regarding crashes, when Firefox crashes, it usually records information about what was happening at that moment. You can submit that data to Mozilla and share it with forum volunteers to see whether it points to the solution. Please check the support article "Firefox crashes - Troubleshoot, prevent and get help fixing crashes" (especially the last section) for steps to get those crash report IDs, and then post some of the recent ones here.

Is/was the page background a pale yellow color? That message is not for you. It's the instructions of Microsoft's IIS web server to the web developer or webmaster on how to make error pages more intelligible so they can fix a glitch in their web application. Occasionally that kind of glitch is caused by mismatched files or cookies, so you might be able to work around it by doing "the usual": When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site. (1) Bypass Firefox's Cache Use Ctrl+Shift+r to reload the page fresh from the server. Alternately, you also can clear Firefox's cache completely using: "3-bar" menu button (or Tools menu) > Options > Advanced On the Network mini-tab > Cached Web Content : "Clear Now" If you have a large hard drive, this might take a few minutes. (2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either: * right-click and choose View Page Info > Security > "View Cookies" * (menu bar) Tools > Page Info > Security > "View Cookies" In the dialog that opens, you can remove the site's cookies individually. Then try reloading the page. Does that help? ---- Regarding crashes, when Firefox crashes, it usually records information about what was happening at that moment. You can submit that data to Mozilla and share it with forum volunteers to see whether it points to the solution. Please check the support article "[[Firefox Crashes]]" (especially the last section) for steps to get those crash report IDs, and then post some of the recent ones here.

Helpful Reply

jscher - wow. THANK YOU!!! Yes, pale yellow, have emptied cache. Perhaps now everything will again work glitchless. By the way, I completed about half of what all that the post on Firefox crashing said to do. I was a bit intimidated on the memtest86+ tool. But now I am again encouraged. Wouldn't you like to move to Idaho and be my close neighbor. Blessings! Thanks!

jscher - wow. THANK YOU!!! Yes, pale yellow, have emptied cache. Perhaps now everything will again work glitchless. By the way, I completed about half of what all that the post on Firefox crashing said to do. I was a bit intimidated on the memtest86+ tool. But now I am again encouraged. Wouldn't you like to move to Idaho and be my close neighbor. Blessings! Thanks!