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Firefox doesn’t know how to open this address, because one of the following protocols (pearsonwin8etextk12) isn’t associated with any program or is not allowed

  • 5 replies
  • 1 has this problem
  • 76 views
  • Last reply by FredMcD

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I got stuck with this. Please help. My daughter can't access to review what she learn from school.

Thank you so much Mrs.Wang

I got stuck with this. Please help. My daughter can't access to review what she learn from school. Thank you so much Mrs.Wang

Chosen solution

The web page opened for me with no problem.

Many site issues can be caused by corrupt cookies or cache.

  • Clear the Cache and
  • Remove Cookies

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

Type about:preferences<enter> in the address bar.

  • Cookies; Select Privacy. Under History, select

Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.

  • Cache; Select Advanced > Network. Across from

Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} A small dialog should appear. Click Start In Safe Mode (not Refresh). While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

You will need to restart Firefox for this to take effect so save all work first (e.g., mail you are composing, online documents you're editing, etc.,) and then perform these steps:

In Firefox 54 and below:

  1. Click the menu button New Fx Menu and select Options (Windows) or Preferences (Mac, Linux).
  2. Select the Advanced panel and the General tab.
  3. Uncheck Use hardware acceleration when available.
  4. Close Firefox completely and then restart Firefox to see if the problem persists.

In Firefox 55 and above:

  1. Click the menu button New Fx Menu and select Options (Windows) or Preferences (Mac, Linux).
  2. Select the General panel.
  3. Under Performance, uncheck Use recommended performance settings. Additional settings will be displayed.
    Fx55Performance-disableHWA
  4. Uncheck Use hardware acceleration when available.
  5. Close Firefox completely and then restart Firefox to see if the problem persists.

Did this fix your problems? Please report back to us!

If the problem is resolved, you should check for updates for your graphics driver by following the steps mentioned in these Knowledge base articles:

Read this answer in context 👍 1

All Replies (5)

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Please provide public (no password) link(s) that we can check out. No Personal Information Please !

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it used to allowed me to click on the link to open my classroom assignment and not it does not. it kept said open a new window


https://sso.rumba.pearsoncmg.com/sso/login?profile=eb&service=https://k12integrations.pearsoncmg.com/ca/dashboard.htm&EBTenant=MUSD-AZ


pearsonwin8etextk12://etext?uid=20170829234600&platform=1119&launchedfrombookshelf=Y&ubsd=20170829234600&launchState=goToEBook&book=1015149&globaluser=ffffffff5966298f2df7c14015220d5c&hsid=d946fb96363464d749481f2dd3fb116c&sessionID=ST-1565086-jMEGHytfskwU7fQc5Fmp-b3-rumba-prod-01-14&scenario=16&languageid=1&ubd=20170829234600&invokeType=lms&scenarioid=scenario16&type=rumba

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Chosen Solution

The web page opened for me with no problem.

Many site issues can be caused by corrupt cookies or cache.

  • Clear the Cache and
  • Remove Cookies

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

Type about:preferences<enter> in the address bar.

  • Cookies; Select Privacy. Under History, select

Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.

  • Cache; Select Advanced > Network. Across from

Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} A small dialog should appear. Click Start In Safe Mode (not Refresh). While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

You will need to restart Firefox for this to take effect so save all work first (e.g., mail you are composing, online documents you're editing, etc.,) and then perform these steps:

In Firefox 54 and below:

  1. Click the menu button New Fx Menu and select Options (Windows) or Preferences (Mac, Linux).
  2. Select the Advanced panel and the General tab.
  3. Uncheck Use hardware acceleration when available.
  4. Close Firefox completely and then restart Firefox to see if the problem persists.

In Firefox 55 and above:

  1. Click the menu button New Fx Menu and select Options (Windows) or Preferences (Mac, Linux).
  2. Select the General panel.
  3. Under Performance, uncheck Use recommended performance settings. Additional settings will be displayed.
    Fx55Performance-disableHWA
  4. Uncheck Use hardware acceleration when available.
  5. Close Firefox completely and then restart Firefox to see if the problem persists.

Did this fix your problems? Please report back to us!

If the problem is resolved, you should check for updates for your graphics driver by following the steps mentioned in these Knowledge base articles:

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Thank you so much. Everything backs to normal

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Glad to help. Safe Surfing.