Hi,
It could be that a security software installed in the system is blocking the new updated Firefox executable. You may have to go into the settings of the security software to re-trust Firefox.
Please also check if you are able to start Firefox by browsing to the Firefox installation folder (Program Files (x86)\Mozilla Firefox\ or Program Files\Mozilla Firefox\ ) and clicking firefox.
...............................................................................................................................
Useful links:
All about Tools > Options
Going beyond Tools > Options - about:config
about:config Entries
Page Info Tools (Alt + T) > Page Info, Right-click > View Page Info
Keyboard Shortcuts
Viewing Video without Plugins
Firefox Profile Folder & Files
Firefox Commands
Basic Troubleshooting
After Upgrading
Safe Mode
Problematic Extensions
Troubleshooting Extensions and Themes
Troubleshooting Plugins
Testing Plugins
Hi,
It could be that a security software installed in the system is blocking the new updated Firefox executable. You may have to go into the settings of the security software to re-trust Firefox.
Please also check if you are able to start Firefox by browsing to the Firefox installation folder ('''Program Files (x86)\Mozilla Firefox\''' or '''Program Files\Mozilla Firefox\''' ) and clicking '''firefox'''.
...............................................................................................................................
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]