It sounds like an add on or the application is not working properly, however it is hard to tell because we do not have too much information. Sometimes a clean reinstall may help as well, please back of the profile folder to save bookmarks and add ons and history.

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.

_____________________ Clean reinstall

Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:

Note: You might want to print these steps or view them in another browser.

1. Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
2. After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
3. Delete the Firefox installation folder, which is located in one of these locations, by default:
   • Windows:
     • C:\Program Files\Mozilla Firefox
     • C:\Program Files (x86)\Mozilla Firefox
   • Mac: Delete Firefox from the Applications folder.
   • Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
4. Now, go ahead and reinstall Firefox:
   1. Double-click the downloaded installation file and go through the steps of the installation wizard.
   2. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

WARNING: Do not run Firefox's uninstaller or use a third party remover as part of this process, because that could permanently delete your Firefox data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be recovered unless they have been backed up to an external device!

Please report back to see if this helped you!

Thank you.

Application Basics

Name: Firefox Version: 27.0 User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:27.0) Gecko/20100101 Firefox/27.0

Crash Reports for the Last 3 Days

All Crash Reports

Extensions

Name: Adblock Plus Version: 2.4.1 Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: NoScript Version: 2.6.8.13 Enabled: true ID: {73a6fe31-595d-460b-a920-fcc0f8843232}

Name: NoTrace Version: 2.3.1 Enabled: true ID: notrace@unisa.it

Important Modified Preferences

accessibility.blockautorefresh: true browser.cache.disk.capacity: 358400 browser.cache.disk.enable: false browser.cache.disk.smart_size_cached_value: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.memory.enable: false browser.link.open_newwindow: 2 browser.places.smartBookmarksVersion: 4 browser.sessionstore.upgradeBackup.latestBuildID: 20140127194636 browser.startup.homepage: http://www.bbc.co.uk/news/uk/ browser.startup.homepage_override.buildID: 20140127194636 browser.startup.homepage_override.mstone: 27.0 browser.tabs.loadInBackground: false dom.mozApps.used: true extensions.lastAppVersion: 27.0 layers.acceleration.disabled: true network.cookie.prefsMigrated: true places.database.lastMaintenance: 1391796873 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true plugin.state.adobepdfviewernpapi: 2 plugin.state.default browser: 2 plugin.state.flash: 0 plugin.state.flip4mac wmv plugin: 1 plugin.state.google earth web plug-in: 2 plugin.state.picasa: 2 plugin.state.quicktime plugin: 0 plugin.state.sharepointbrowserplugin: 2 print.macosx.pagesetup-2: PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHBsaXN0IFBVQkxJQyAiLS8vQXBwbGUvL0RURCBQTElTVCAxLjAvL0VO print.print_bgcolor: false print.print_bgimages: false print.print_colorspace: print.print_command: print.print_downloadfonts: false print.print_duplex: 0 print.print_evenpages: true print.print_in_color: true print.print_margin_bottom: 0.5 print.print_margin_left: 0.5 print.print_margin_right: 0.5 print.print_margin_top: 0.5 print.print_oddpages: true print.print_orientation: 0 print.print_page_delay: 50 print.print_paper_data: 0 print.print_paper_height: 11.00 print.print_paper_name: print.print_paper_size_type: 1 print.print_paper_size_unit: 0 print.print_paper_width: 8.50 print.print_plex_name: print.print_resolution: 0 print.print_resolution_name: print.print_reversed: false print.print_scaling: 1.00 print.print_shrink_to_fit: true print.print_to_file: false print.print_unwriteable_margin_bottom: 57 print.print_unwriteable_margin_left: 25 print.print_unwriteable_margin_right: 25 print.print_unwriteable_margin_top: 25 privacy.donottrackheader.enabled: true privacy.sanitize.migrateFx3Prefs: true storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1391537606

Graphics

Device ID: 0x fd8 GPU Accelerated Windows: 0/1 Basic Vendor ID: 0x10de WebGL Renderer: NVIDIA Corporation -- NVIDIA GeForce GT 640M OpenGL Engine windowLayerManagerRemote: false AzureCanvasBackend: quartz AzureContentBackend: quartz AzureFallbackCanvasBackend: none 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: 3.15.4 Basic ECC Version in use: 3.15.4 Basic ECC

NSSSMIME Expected minimum version: 3.15.4 Basic ECC Version in use: 3.15.4 Basic ECC

NSSSSL Expected minimum version: 3.15.4 Basic ECC Version in use: 3.15.4 Basic ECC

NSSUTIL Expected minimum version: 3.15.4 Version in use: 3.15.4

Thanks for the suggestion. I think I have solved this as you suggest and have even managed to rescue my old bookmarks and passwords. Now I have a problem downloading flash player. This is posted under colinmitch, not rewardinheaven. I have no idea how I come to have two signons or how to choose which one shows up. Sorry for the confusion.