Hello,

To find the correct solution to your problem, we need some more non-personal information from you. Please do the following:

1. Use ONE of these methods to open the Firefox Troubleshooting Information page:
   • Click the menu button , click on help and select Troubleshooting Information.
   • Type about:support into the Firefox address bar and press the enter key.
2. At the top of the Troubleshooting Information page that comes up, you should see a button that says "Copy text to clipboard". Click it.
3. Now, go back to your forum post, right-click in the reply box and select Paste from the context menu (or else click inside the reply box and press the Ctrl+V keys) 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!

If you do not keep changes after a restart or otherwise have problems with preferences, see:

Delete a possible user.js file and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in the current Firefox release.

• http://kb.mozillazine.org/Preferences_not_saved
• http://kb.mozillazine.org/Resetting_preferences

Application Basics

Name: Firefox Version: 31.0 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0

Crash Reports for the Last 3 Days

All Crash Reports

Extensions

Name: 365Scores Notifier Version: 1.1.2 Enabled: true ID: Firefox@365scores.com

Name: Adblock Plus Version: 2.6.4 Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Awesome screenshot: Capture and Annotate Version: 2.4.3 Enabled: true ID: jid0-GXjLLfbCoAx0LcltEdFrEkQdQPI@jetpack

Name: ColorZilla Version: 2.8 Enabled: true ID: {6AC85730-7D0F-4de0-B3FA-21142DD85326}

Name: CoolPreviews Version: 4.2 Enabled: true ID: {CE6E6E3B-84DD-4cac-9F63-8D2AE4F30A4B}

Name: Download Status Bar Version: 10.1.0 Enabled: true ID: {6c28e999-e900-4635-a39d-b1ec90ba0c0f}

Name: FindBar Tweak Version: 1.4.18 Enabled: true ID: fbt@quicksaver

Name: Flagfox Version: 5.0.5 Enabled: true ID: {1018e4d6-728f-4b20-ad56-37578a4de76b}

Name: Hola Better Internet Version: 1.4.270 Enabled: true ID: jid1-4P0kohSJxU1qGg@jetpack

Name: IDM CC Version: 7.3.75 Enabled: true ID: mozilla_cc@internetdownloadmanager.com

Name: LastPass Version: 3.1.1 Enabled: true ID: support@lastpass.com

Name: NewScrollbars (aka NoiaScrollbars) Version: 1.2.1 Enabled: true ID: NoiaScrollbars@ArisT2_Noia4dev

Name: Pocket Version: 3.0.5 Enabled: true ID: isreaditlater@ideashower.com

Name: Stylish Version: 1.4.3 Enabled: true ID: {46551EC9-40F0-4e47-8E18-8E5CF550CFB8}

Name: Thumbnail Zoom Plus Version: 2.7 Enabled: true ID: thumbnailZoom@dadler.github.com

Name: Troubleshooter Version: 1.1a Enabled: true ID: troubleshooter@mozilla.org

Name: URL Link Version: 2.04.3 Enabled: true ID: {139a120b-c2ea-41d2-bf70-542d9f063dfd}

Name: HP Smart Web Printing Version: 4.51 Enabled: false ID: smartwebprinting@hp.com

Name: New Tab Plus Version: 4.6.2 Enabled: false ID: weidunewtab@gmail.com

Graphics

Adapter Description: AMD Radeon HD 7800 Series Adapter Drivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM: 2048 Device ID: 0x679e Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16492) Driver Date: 12-6-2013 Driver Version: 13.251.0.0 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 10 Vendor ID: 0x1002 WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon HD 7800 Series Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: false AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Important Modified Preferences

accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 358400 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.frecency_experiment: 3 browser.places.smartBookmarksVersion: 7 browser.search.useDBForOrder: true browser.sessionstore.restore_on_demand: false browser.sessionstore.upgradeBackup.latestBuildID: 20140716183446 browser.startup.homepage: https://mail.google.com/mail/u/0/#inbox | www.facebook.com | www.twitter.com browser.startup.homepage_override.buildID: 20140716183446 browser.startup.homepage_override.mstone: 31.0 browser.tabs.closeWindowWithLastTab: false dom.mozApps.used: true extensions.lastAppVersion: 31.0 font.internaluseonly.changed: false font.name.serif.x-western: Trebuchet MS gfx.direct3d.last_used_feature_level_idx: 0 network.cookie.prefsMigrated: true permissions.default.image: 0 places.database.lastMaintenance: 1406923392 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true print.printer_Foxit_Reader_PDF_Printer.print_bgcolor: false print.printer_Foxit_Reader_PDF_Printer.print_bgimages: false print.printer_Foxit_Reader_PDF_Printer.print_colorspace: print.printer_Foxit_Reader_PDF_Printer.print_command: print.printer_Foxit_Reader_PDF_Printer.print_downloadfonts: false print.printer_Foxit_Reader_PDF_Printer.print_duplex: 1515870810 print.printer_Foxit_Reader_PDF_Printer.print_edge_bottom: 0 print.printer_Foxit_Reader_PDF_Printer.print_edge_left: 0 print.printer_Foxit_Reader_PDF_Printer.print_edge_right: 0 print.printer_Foxit_Reader_PDF_Printer.print_edge_top: 0 print.printer_Foxit_Reader_PDF_Printer.print_evenpages: true print.printer_Foxit_Reader_PDF_Printer.print_footercenter: print.printer_Foxit_Reader_PDF_Printer.print_footerleft: &PT print.printer_Foxit_Reader_PDF_Printer.print_footerright: &D print.printer_Foxit_Reader_PDF_Printer.print_headercenter: print.printer_Foxit_Reader_PDF_Printer.print_headerleft: &T print.printer_Foxit_Reader_PDF_Printer.print_headerright: &U print.printer_Foxit_Reader_PDF_Printer.print_in_color: true print.printer_Foxit_Reader_PDF_Printer.print_margin_bottom: 0.5 print.printer_Foxit_Reader_PDF_Printer.print_margin_left: 0.5 print.printer_Foxit_Reader_PDF_Printer.print_margin_right: 0.5 print.printer_Foxit_Reader_PDF_Printer.print_margin_top: 0.5 print.printer_Foxit_Reader_PDF_Printer.print_oddpages: true print.printer_Foxit_Reader_PDF_Printer.print_orientation: 0 print.printer_Foxit_Reader_PDF_Printer.print_page_delay: 50 print.printer_Foxit_Reader_PDF_Printer.print_paper_data: 9 print.printer_Foxit_Reader_PDF_Printer.print_paper_height: 11,00 print.printer_Foxit_Reader_PDF_Printer.print_paper_name: print.printer_Foxit_Reader_PDF_Printer.print_paper_size_type: 0 print.printer_Foxit_Reader_PDF_Printer.print_paper_size_unit: 1 print.printer_Foxit_Reader_PDF_Printer.print_paper_width: 8,50 print.printer_Foxit_Reader_PDF_Printer.print_plex_name: print.printer_Foxit_Reader_PDF_Printer.print_resolution: 1515870810 print.printer_Foxit_Reader_PDF_Printer.print_resolution_name: print.printer_Foxit_Reader_PDF_Printer.print_reversed: false print.printer_Foxit_Reader_PDF_Printer.print_scaling: 1,00 print.printer_Foxit_Reader_PDF_Printer.print_shrink_to_fit: true print.printer_Foxit_Reader_PDF_Printer.print_to_file: false print.printer_Foxit_Reader_PDF_Printer.print_unwriteable_margin_bottom: 0 print.printer_Foxit_Reader_PDF_Printer.print_unwriteable_margin_left: 0 print.printer_Foxit_Reader_PDF_Printer.print_unwriteable_margin_right: 0 print.printer_Foxit_Reader_PDF_Printer.print_unwriteable_margin_top: 0 print.printer_hp_psc_1310_series.print_bgcolor: false print.printer_hp_psc_1310_series.print_bgimages: false print.printer_hp_psc_1310_series.print_colorspace: print.printer_hp_psc_1310_series.print_command: print.printer_hp_psc_1310_series.print_downloadfonts: false print.printer_hp_psc_1310_series.print_duplex: 1515870810 print.printer_hp_psc_1310_series.print_edge_bottom: 0 print.printer_hp_psc_1310_series.print_edge_left: 0 print.printer_hp_psc_1310_series.print_edge_right: 0 print.printer_hp_psc_1310_series.print_edge_top: 0 print.printer_hp_psc_1310_series.print_evenpages: true print.printer_hp_psc_1310_series.print_footercenter: print.printer_hp_psc_1310_series.print_footerleft: &PT print.printer_hp_psc_1310_series.print_footerright: &D print.printer_hp_psc_1310_series.print_headercenter: print.printer_hp_psc_1310_series.print_headerleft: &T print.printer_hp_psc_1310_series.print_headerright: &U print.printer_hp_psc_1310_series.print_in_color: true print.printer_hp_psc_1310_series.print_margin_bottom: 0.5 print.printer_hp_psc_1310_series.print_margin_left: 0.5 print.printer_hp_psc_1310_series.print_margin_right: 0.5 print.printer_hp_psc_1310_series.print_margin_top: 0.5 print.printer_hp_psc_1310_series.print_oddpages: true print.printer_hp_psc_1310_series.print_orientation: 0 print.printer_hp_psc_1310_series.print_page_delay: 50 print.printer_hp_psc_1310_series.print_paper_data: 9 print.printer_hp_psc_1310_series.print_paper_height: 11,00 print.printer_hp_psc_1310_series.print_paper_name: print.printer_hp_psc_1310_series.print_paper_size_type: 0 print.printer_hp_psc_1310_series.print_paper_size_unit: 1 print.printer_hp_psc_1310_series.print_paper_width: 8,50 print.printer_hp_psc_1310_series.print_plex_name: print.printer_hp_psc_1310_series.print_resolution: 1515870810 print.printer_hp_psc_1310_series.print_resolution_name: print.printer_hp_psc_1310_series.print_reversed: false print.printer_hp_psc_1310_series.print_scaling: 1,00 print.printer_hp_psc_1310_series.print_shrink_to_fit: true print.printer_hp_psc_1310_series.print_to_file: false print.printer_hp_psc_1310_series.print_unwriteable_margin_bottom: 0 print.printer_hp_psc_1310_series.print_unwriteable_margin_left: 0 print.printer_hp_psc_1310_series.print_unwriteable_margin_right: 0 print.printer_hp_psc_1310_series.print_unwriteable_margin_top: 0 privacy.sanitize.migrateFx3Prefs: true storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1406405471

JavaScript

Incremental GC: true

Accessibility

Activated: false Prevent Accessibility: 0

Library Versions

NSPR Expected minimum version: 4.10.6 Version in use: 4.10.6

NSS Expected minimum version: 3.16.2 Basic ECC Version in use: 3.16.2 Basic ECC

NSSSMIME Expected minimum version: 3.16.2 Basic ECC Version in use: 3.16.2 Basic ECC

NSSSSL Expected minimum version: 3.16.2 Basic ECC Version in use: 3.16.2 Basic ECC

NSSUTIL Expected minimum version: 3.16.2 Version in use: 3.16.2

Experimental Features

Replacing prefs.js with a fresh one solved the problem but all my preferences were gone. That is not something that I wish but I think I can handle to get them again.

In the fresh prefs.js I added my ui.textSelectForeground option. It seems now firefox does not reset my preferences everytime I close.

Nope, I am back. Again the change reverted back to #000000 all of a sudden.

Prefs shouldn't change to a previous value randomly.

There is software like Advanced SystemCare with its Surfing Protection feature that can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

Oh did not think about that. Malwarebytes Anti-Malware is installed. Most probably it creates the problem. I will disable and watch the result.

Still not solved after disabling Anti-Malware.

Does this also happen if you close and immediately restart Firefox? Make sure to give Firefox enough time to close completely.

You can make a backup copy of the prefs.js file or use a user.js file to initialize this pref on every start.

• http://kb.mozillazine.org/user.js_file

Thank you for all your support. Adding the relevant line to the user.js solved the problem.