Firefox won't open
A couple of days ago Firefox stopped working on my computer (would not open). I am running Windows 7 but not sure what version of Firefox I was running. I did a restart and the problem continued so after reading multiple articles and trying various solutions I choose to reinstall Firefox (version 25.0.1). After reinstalling Firefox it works perfectly until I do a reboot on the computer, once the computer has rebooted I again can no longer open Firefox.
Please help!
edit: fixed the thread's title to make it more meaningful. (philipp)
Modified by philipp
All Replies (8)
In order to be able to find the correct solution to your problem, we require some more non-personal information from you. Please do the following:
- Click the Firefox button at the top left, then click the Help menu and select Troubleshooting Information from the submenu. If you don't have a Firefox button, click the Help menu at the top and select Troubleshooting Information from the menu.
Now, a new tab containing your troubleshooting information should open.
- At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
- Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.
If you need further information about the Troubleshooting information page, please read the article Use the Troubleshooting Information page to help fix Firefox issues.
Thanks in advance for your help!
It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
Application Basics
Name: Firefox Version: 25.0.1 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0
Extensions
Name: AVG SafeGuard toolbar Version: 17.1.2.1 Enabled: false ID: avg@toolbar
Name: Symantec VIP Access Add-On Version: 2.0.5.0 Enabled: false ID: VIP5X@verisign.com
Important Modified Preferences
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.places.smartBookmarksVersion: 4 browser.sessionstore.upgradeBackup.latestBuildID: 20131112160018 browser.startup.homepage_override.buildID: 20131112160018 browser.startup.homepage_override.mstone: 25.0.1 extensions.lastAppVersion: 25.0.1 network.cookie.prefsMigrated: true places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf privacy.sanitize.migrateFx3Prefs: true
Graphics
Adapter Description: Intel(R) HD Graphics 4000 Adapter Drivers: igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32 Adapter RAM: Unknown Device ID: 0x0166 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16571) Driver Date: 6-6-2012 Driver Version: 8.15.10.2778 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 10 Vendor ID: 0x8086 WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: false AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0
JavaScript
Incremental GC: true
Accessibility
Activated: false Prevent Accessibility: 0
Library Versions
NSPR Expected minimum version: 4.10.2 Version in use: 4.10.2
NSS Expected minimum version: 3.15.3 Basic ECC Version in use: 3.15.3 Basic ECC
NSSSMIME Expected minimum version: 3.15.3 Basic ECC Version in use: 3.15.3 Basic ECC
NSSSSL Expected minimum version: 3.15.3 Basic ECC Version in use: 3.15.3 Basic ECC
NSSUTIL Expected minimum version: 3.15.3 Version in use: 3.15.3
I tried turning off Windows Firewall and that didn't solve the problem. The antivirus software that I use is F-Protect and best I can tell there are no rules regarding Firefox. Other ideas?
Just checking to see if anyone has had a chance to review my problem that I posted yesterday? Would like to solve this issue before the weekend if at all possible. Thank you in advance!
When you checked the firewall, did it show ALLOW? If it says auto, that does not mean the connection is allowed. Please check again.
Yes, Firefox is checked as an allowed program in Windows Firewall. Other ideas? If you'll recall Firefox works perfectly when I first do the install, its when I shut down the computer and reboot that Firefox will not open.
See if you can disable AVG SafeGuard. Some have reported problems with AVG softtware. BTW, have you tried starting Firefox in Safe Mode?