Why does this box keep popping up after firefox updated 3 days ago-The URL is not valid and cannot be loaded.

this box pops up ever time i switch to private browsing or look at pictures is there a cure?

Hi,
Please [https://support.mozilla.org/en-US/questions/906369 see this.] This may only help you if the system doesn't have the .Net 3.5 SP1 installed.
Useful links:
[https://support.mozilla.com/en-US/kb/Options%20window All about Tools > Options]
[http://kb.mozillazine.org/About:config Going beyond Tools > Options - about:config]
[http://kb.mozillazine.org/About:config_entries about:config Entries]
[https://support.mozilla.com/en-US/kb/Page%20Info%20window Page Info] Tools (Alt + T) > Page Info, Right-click > View Page Info
[https://support.mozilla.com/en-US/kb/Keyboard%20shortcuts Keyboard Shortcuts]
[https://support.mozilla.com/en-US/kb/Viewing%20video%20in%20Firefox%20without%20a%20plugin Viewing Video without Plugins]
[http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder & Files]
[https://developer.mozilla.org/en/Command_Line_Options#Browser Firefox Commands]
[https://support.mozilla.com/en-US/kb/Basic%20Troubleshooting Basic Troubleshooting]
[https://support.mozilla.com/en-US/kb/common-questions-after-upgrading-firefox-36 After Upgrading]
[https://support.mozilla.com/en-US/kb/Safe%20Mode Safe Mode]
[http://kb.mozillazine.org/Problematic_extensions Problematic Extensions]
[https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes Troubleshooting Extensions and Themes]
[https://support.mozilla.com/en-US/kb/Troubleshooting%20plugins Troubleshooting Plugins]
[http://kb.mozillazine.org/Testing_plugins Testing Plugins]

Similar Messages

  • Why do i keep getting box: The URL is not valid and cannot be loaded.

    When changing web sites, a dialog box pops up every time Saying "The URL is not valid and cannot be loaded".

    Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • Why do i keep getting an Alert message saying "The URL is not valid and cannot be loaded "?

    Why do i keep getting an Alert message saying "The URL is not valid and cannot be loaded "?
    This happens a lot regardless of the web page. I continually have to restart FF and it persists still

    Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See:
    * [[Troubleshooting extensions and themes]]
    * [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • Why do I keep getting an error message that reads "The URL is not valid and cannot be loaded."

    Whenever I click on a link that opens a new tab using "about:tab", an error pops up. The error box is titled "Alert" and the message reads "The URL is not valid and cannot be loaded."
    However, once I click OK, the page loads just fine. At first, I thought it might be one of my add-ons (Iuse a bunch), but it still occurs after restarting in Safe Mode. Any thoughts?
    I can even create the problem without clicking on a link inside a page if I simply type about:tab in the address bar.
    I am using Firefox 12.0

    Wow! I actually solved this on my own. I didn't find any thread that helped, but after reading a few, I figured poking around in about.config would help... and it did!
    Here is how I solved the problem:
    # Typed '''about:config''' in address bar.
    # When I got to the warning about voiding the warranty, clicked '''I'll be careful, I promise!'''
    # I found the setting entitled '''browser.newtabl.url''' (use the '''Search:''' box).
    # I double-clicked on the entry entitled '''browser.newtabl.url''' and deleted the info in the value portion.
    # Clicked '''OK'''.
    # Closed the tab.
    # Restarted Firefox and problem was solved.

  • Why does Firefox warn me "The URL is not valid and cannot be loaded" on just about everysight that I go to including my MSN homepage

    When I open firefox and go to my home page I get The URL is not valid and cannot be loaded. This also happens when I access other pages. I click ok and then it opens up but I'm ready to go back to IE

    Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).<br />
    See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]<br />
    <br />
    If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.<br />
    You can use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.<br />
    You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • I am constantly getting pop ups saying that The URL is not valid and cannot be loaded even though I am on the web page.

    I have version 3.6.13 Firefox. I have uninstalled and reinstalled, but still keep getting an error message saying that The URL is not valid and cannot be loaded. This happens even when I am on the web page, but the message continues to keep popping up.

    Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See:
    * [[Troubleshooting extensions and themes]]
    * [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • I keep getting the alert window that says, "the url is not valid and cannot be loaded"

    My computer is "online" but whenever I try to get on a website, the "Alert" box pops up in the middle of my screen saying, "the URL is not valid and cannot be loaded". This is only happening on Mozilla Firefox, I am able to use Internet Explorer without any problems. I do prefer to use Mozilla Firefox as my browser though.

    Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • When we connect to the internet or visit a new web page, a new tab opens and an alert pops up as follows: "The URL is not valid and cannot be loaded"

    When we start the internet or navigate to a new page, a new tab opens with the following alert: "The URL is not valid and cannot be loaded." We "x" out of it, but a new tab, with the same alert appears. The problem occurs again when we try to navigate to another web page. A real nuisance. We've scanned the computer but found nothing but Adware cookies.
    == This happened ==
    Every time Firefox opened
    == 5/20/10

    Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    You can use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • When clicking on making a new tab it comes up with "The URL is not valid and cannot be loaded" how do i fix this

    The URL is not valid and cannot be loaded keeps coming up whenever making a new tab. can not seem to fix have firefox 3.6.13

    Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See:
    * [[Troubleshooting extensions and themes]]
    * [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • The URL is not valid and cannot be loaded. This statement comes up on almost any attempt to log into or click a link to anything at least on 2 tries, then the site comes up. what's up with this?

    firefox v 3.6.13 is what I use. If I select something from "read Later" or a link from the home page to another site, I get that message - The URL is not valid and cannot be loaded. in a box that pops us a couple of times, then the site I want.

    Please [https://bugzilla.mozilla.org/show_bug.cgi?id=713167 see this.] Installing [https://www.microsoft.com/download/en/details.aspx?id=5638 Visual C++ 2005 SP1] or the .Net Framework 3.5 SP1 may help mitigate the issue.

  • When I open firefox I get this message; The address isn't valid The URL is not valid and cannot be loaded.

    I get this message whenever I open firefox or a new tab. Anything I had tabbed to the top has gone, and the original homepage which shows all my recent visits is invalid. The full message is:
    The address isn't valid
    The URL is not valid and cannot be loaded.
    Web addresses are usually written like http://www.example.com/
    Make sure that you're using forward slashes (i.e. /).
    Try Again.
    Help mee!!!

    Hi fredmcd-hotmail
    It's not that I'm typing anything in wrong, it's when I first open Firefox or a new tab. Instead of displaying the firefox page showing my recently viewed websites it's just an invalid URL. Why would I be blocked from this page?
    Thanks

  • Sometimes when firefox loads a web page the error message comes up stating The URL is not valid and cannot be loaded. And I know this is a valid web site. What gives?

    This happens very often. When I open Mozilla sometimes I get an error stating that "The URL is not valid and cannot be loaded." When I click ok the site stops loading and the tab is titled untiled.

    This can be a problem with DDE.<br />
    See http://kb.mozillazine.org/Windows_error_opening_Internet_shortcut_or_local_HTML_file_-_Firefox

  • When I click on "Sign in to Sync" the page "about:accounts" shows error "The URL is not valid and cannot be loaded." How do I fix this so I can use Sync?

    When I click on the three-bar icon (top right) and then on "Sign in to Sync" a new tab opens attempting to load "about:accounts" . . . the page that loads is an error . . . "Problem loading page" shows up on the tab and the page displays:
    The address isn't valid
    The URL is not valid and cannot be loaded.
    Web addresses are usually written like http://www.example.com/
    Make sure that you're using forward slashes (i.e. /).
    Try again
    I am running Firefox 30.0 on a Dell XPS-18 and Windows 8.0.
    I cannot access "about:accounts" at all. How do I fix this?

    The about:accounts page is a valid page in the current Firefox release.
    Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
    *Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
    *Do NOT click the Reset button on the Safe Mode start window
    *https://support.mozilla.org/kb/Safe+Mode
    *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

  • Why do I get error message "The URL is not valid and cannot be loaded" when everything looks OK?

    This message pops up while using programs like yahoo mail. I delete it and everything continues as normal.

    Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

  • What causes me to keep getting the message "the url is not valid and cannot be loaded" quite often, especially on MSN homepage among others?

    I get this message quite often. I know the urls are valid because I visit the websites everyday. People have told me that maybe Firefox just doesn't support those websites very well and to try a different browser. It's driving me crazy. Any ideas?

    Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See:
    * [[Troubleshooting extensions and themes]]
    * [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

Maybe you are looking for