Firefox has started to refuse to open Gmail, saying that the certificate is not valid and that he refuses to remember the exception.

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• Firefox has started to crash at startup, after that I seconded a bookmark bar button

  Firefox has started crashign at startup after I seconded a button in the bookmarks bar. It does not start in SafeMode either.

  This looks like a problem with the taskbar previews.

  It is possible that there is a problem with the sessionstore.js and sessionstore.bak files in the Firefox profile folder.

  Delete the sessionstore.js file [2] and files possible sessionstore-# .js [3] with a number and sessionstore.bak in the Firefox profile folder.

  • Help > troubleshooting information > profile directory: opens showing the file
  • http://KB.mozillazine.org/Profile_folder_-_Firefox

  Delete sessionstore.js will cause App Tabs and tab groups and opened and closed the tabs (back) to get lost, so you will need to create them again (take note or bookmarks).

  See also:

  • [1] http://kb.mozillazine.org/Session_Restore
  • [2] http://kb.mozillazine.org/sessionstore.js
  • [3] http://kb.mozillazine.org/Multiple_profile_files_created

  Create a new profile as a test to see if your profile is the source of the problems.

  See "basic troubleshooting: a new profile:

  • https://support.Mozilla.org/KB/basic+troubleshooting#w_8-make-a-new-profile

  There may be extensions and plugins installed by default in a new profile, so check that in "tools > Modules > Extensions & Plugins" in case there are still problems.

  If this new profile works then you can transfer files from the old profile to the new profile, but make sure not to copy corrupted files.

  See:

  • http://KB.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

• Problem of the intranet: "Firefox doesn't know how to open this address, because the Protocol (k) is not associated with any program."

  Creation of an intranet to a collection of security videos and am linking to a video through a picture icon in the form of:
  < a href = "K: \'link to the movie" > ""
  < /a >

  Overview on the works of IE9, the movie starts when the splash screen is clicked, but in Firefox, I get the alert "Firefox doesn't know how to open this address, because the Protocol (k) is not associated with any program."

  InterLan VLC is the video player by default on the PC. I don't want to put video controls anywhere in the page.

  I code for XHTML 1.1 strict with CSS 2.1, and Firefox 5 handles all of my eccentric styles while IE9 has a few issues, while Firefox is my browser of choice.

  Looking at my Options in Firefox, 'File Windows Media audio/video' is configured to use VLC.exe, so I'm always looking to solve this problem.

  Any Suggestions?

  You must use the Protocol file:// (file:///k:/link_to_movie).
  Easier to see the links to use are to open a file via file > open a file

  • http://KB.mozillazine.org/Links_to_local_pages_do_not_work

• I try to get Firefox to open Vuze when I click on a magnet link, I get the following message: Firefox doesn't know how to open this address, because the Protocol (loving) is not associated with any program. tell me the solution

  When I try to open a torrent using magnet, I get the following message. Firefox doesn't know how to open this address because the Protocol (loving) is not binding to any program.

  I had this problem and just reinstalled Firefox. Problem solved. In my case, I believe that it is through the installation of FlashGet. Although I uninstalled FlashGet, it had outstripped the Magnet links / Protocol. I hope this helps you with your instance. Fortunately, I had Setup for my version of Firefox (7.0.1) registered and used that but you might need to search for your current version or install a later version

• I have updated and now when I try to log on to Web sites with fingerprint reader, I get "Firefox doesn't know how to open this address, because the Protocol (dpql) is not associated with any program."

  I have updated and now when I try to log on to Web sites with fingerprint reader, I get "Firefox doesn't know how to open this address, because the Protocol (dpql) is not associated with any program."

  What is the Digital Persona fingerprint scanner? If it's that they have abandoned, for more details, see https://support.mozilla.com/en-US/questions/799388

• Impossible to download music - error message reads "Firefox doesn't know how to open this address, because the Protocol (wmms) is not associated with any program."

  I bought a song to download from Wal - Mart.com and received the error message when I tried to download the song. "Firefox doesn't know how to open this address, because the Protocol (wmms) is not associated with any program." I've never had a problem before. I paid for this download & even I can't access it.

  The site of Wal-Mart offer a plugin or program (Walmart MP3 music downloads) to manage this Protocol?

  See:

  • http://MP3.Walmart.com/store/help/help.htm
  • http://MP3.Walmart.com/store/help/downloading.htm

  On a protocol must be enrolled in a program for Windows that supports this Protocol.

  See also http://kb.mozillazine.org/Register_protocol

• When I click on my icon of firefox homepage says "the address is not a valid URL. The URL is not valid and cannot be loaded. How can I fix it?

  When I downloaded Mozilla Firefox and clicked on the Firefox icon I get this message on the Firefox homepage "the address is not valid.

  The URL is not valid and cannot be loaded. "I can always access the internet but what do I do to get rid of this message. The home page does not display the icon of firefox.

  You can check the setting of the homepage:

  • Tools > Options > general > startup: Homepage

  Firefox supports several home pages separated by ' |' symbol (pipe).

  • https://support.Mozilla.org/KB/how+to+set+the+home+page

  Start Firefox in Safe Mode to check if one of the extensions (Firefox/tools > Modules > Extensions) or if hardware acceleration is the cause of the problem.

  • Put yourself in the DEFAULT theme: Firefox/tools > Modules > appearance
  • Do NOT click on the reset button on the startup window Mode safe
  • https://support.Mozilla.org/KB/safe+mode
  • https://support.Mozilla.org/KB/troubleshooting+extensions+and+themes

• while trying to reset to fix the slowness, firefox never finished, so I closed it, now it says my profile is not valid, and nothing will load.

  while trying to reset to fix the slowness, firefox never finished, so I closed it, now it says my profile is not valid, and nothing will load. So I have no possibility to repair. I tried to anUpgrade, but which resulted in the same situation.

  Sorry, when an update is interrupted, it can happen. Please start by creating a new profile. There is no data in it, but it will get us started.

  You will start the Firefox profile manager using the Windows Run dialog box (hold down the Windows key and tap R) or the system Windows 10 search box. Paste the following and press ENTER:

  firefox.exe -P
  

  This should start a small window.

  Click on the button to create a profile, assign a name like OldSettings and ignore the ability to move the profile folder. After you create the profile, select it and start Firefox in this profile.

  I guess that Firefox works?

• "This FXP project is not valid and cannot be opened.

  I work on this project and all the catalyst suddenly does not allow me to open this file and the pop-up message: "this FXP project is not valid and cannot be opened.

  I think if its because I deleted a SWF of fxp library, which is a slide show of the gallery that wants to get out.

  She appeared a message about it would deal a problem a little, but I ignored.

  I read these messages in the Adobe forum about this problem and tried to solve it but does not work.

  can help?

  Hi Jessie,.

  I deleted the transition code that has been altered by the last edition that you mentioned and the project now open fine. I'll send a copy to you by email or ftp.

  Eric

• Since this morning my Thunderbird is not - responding whenever I try to open or send an email it is not responding and is very slow and I have to close it. Difficulty?

  Since this morning my Thunderbird is not - responding whenever I try to open or send an email it is not responding and is very slow and I have to close it. I tried to delete the global-messages - db.sqlite but it does nothing. Any ideas?

  Check if this happens in safe mode:

  • Safe mode

  Did you try to compact your email?

  • Compact

  And the record of repair?

  • Click with the right button of the mouse on Inbox > > Properties > > File Repair

• I get this error message 'The URL is not valid and cannot be loaded' when I try to go to Firefox home. I uninstalled the modules, uninstaleed and reinstalled a new fresh firefox which did not help

  I get the following error message 'The URL is not valid and cannot be loaded' when I try to go to firefox home. I uninstalled modules, uninstalled Firefox and then install a new version. Still have the problem.
  Thanks for the help

  This problem may be caused by a corrupt installation of Visual C++ or incomplete (several versions can be installed-by-side; SxS) it lacks certain runtime components (redistributable Packages), which depends on Firefox (problem with an embedded manifest file that specifies a specific runtime version).

  You need to install the missing components (for example, Redistrbutable end 2005 ++).

  • https://www.Microsoft.com/download/en/details.aspx?ID=5638
  • [908165/questions/908165] The URL is not valid and cannot be loaded
  • bug 713167 - Microsoft.VC80.CRT SideBySide errors, browsercomps.dll

• My Windows XP home has lost, it is the function of help when I go to help & Support it says a system service is not running and then said go to the Support & Help! ?? Catch 22. Thank you, Dennis Australia

  When I go to help & support it says a system service is not running and then said go to support &! ??
  Catch 22.
  Thank you, Dennis
  Australia

  Go to: Control Panel, administrative tools, Services, double click on help and Support.

  Startup type: automatic

  Service status: click on start, click on apply, click OK

• Firefox has started to freeze on the opening and hangs / freezes frequently during use.

  Firefox has begun to open very slowly [very]!, as well as to crashing and freezing during use. What's happening on all my three machines, two running Win 7 and the other win 8.
  I tried refreshing and disabling, but to no avail hardware acceleration.
  Now it seems to freeze on opening and takes a minute or two to become sensitive, or not at all.
  When I look into during a freezing Task Manager, I see the Firefox process use 35 to 50% of memory [I have 8GB, 12GB, and 16GB] and up to 50% of the CPU resources.
  Everything was fine until the last two weeks.
  In addition, last month, I noticed an almost permanent error on the status bar message - ' Sync has encountered an error during synchronization: unknown error. " Synchronize automatically retrying this action. »

  
  

• Firefox has recently discontinued. I opened it again, and I had lost my pinned tabs. How can I find/restore them?

  Firefox sometimes stops, but this time I opened it as usual and my pinned tabs have been lost. I searched through the parameter etc but I can't find a way to get back them, or at least to find them. Any ideas?

  Do not close Firefox. Please save all your files of sessionstore in a safe place for potential recovery/recovery operations.

  You can open the settings file (AKA Firefox profile) current Firefox help

  • button "3-bar" menu > "?" button > troubleshooting information
  • (menu bar) Help > troubleshooting information
  • type or paste everything: in the address bar and press Enter

  In the first table of the page, click on the view file"" button.

  In the window that launches, scroll down and save a copy of all the files whose names begin with sessionstore to a safe place, such as your Documents folder. If not too much time has passed, we may be able to use to recover your blank tabs.

  Then you could check the menu history for 'restore previous Session "? This can appear on the application ('3-bar' menu) or on the menu bar.

  If 'Restore previous Session' is grayed out, then either Firefox has already loaded your session previous windows and tabs, or could not load the file. Check the menu history the possibility of re-opening closed windows and then labels in each window. Nothing salvageable?

  The types of files that you can find in your sessionstore files include:

  • sessionstore.js: windows and tabs in your Firefox session currently live (or, if Firefox is closed, your last session)
  • sessionstore.bak: the windows and tabs in your last session in Firefox
  • sessionstore.bak -datetime: windows and tabs in Firefox that was alive at the time of your last update session
  • sessionstore - 1.js (or other numbered files): windows and tabs when Firefox was unable to update the sessionstore.js file registered

  Can take you a look at what you have and the date / time of the different files to see if you think that one of them would be the windows and tabs missing?

• Google chrome has started to crash when opened with windows 7

  My google chrome suddenly began to crash whenever I try to open it.

  Never had this problem earlier and can not connect to anything unusual, I did with my windows 7.
  I reinstalled Chrome but no result.

  There are several items in the following Google Chrome Support not associated with Chrome open or crashing after opening: http://support.google.com/chrome/bin/static.py?hl=en&topic=14684&page=table.cs&tab=21605