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How can I prevent a script from changing Firefox permissions to root without my having to enter a password?

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  • 1 has this problem
Posted

I'm running Firefox 30.0 under Ubuntu 13.10 (I intend to upgrade soon...). With several windows and tabs open, video running, Firefox crashed. I tried to run bleachbit before rebooting but it informed me that FF was still running. Turns out it was running with root permissions.

I suspect some script or other (malware?) changed Firefox permissions to root without my having to enter a password. How can I prevent this in the future? Thanks for your help.

I'm running Firefox 30.0 under Ubuntu 13.10 (I intend to upgrade soon...). With several windows and tabs open, video running, Firefox crashed. I tried to run bleachbit before rebooting but it informed me that FF was still running. Turns out it was running with root permissions. I suspect some script or other (malware?) changed Firefox permissions to root without my having to enter a password. How can I prevent this in the future? Thanks for your help.

Additional System Details

Installed Plug-ins

  • The Videos 3.8.2 plugin handles video and audio streams.
  • DivX Web Player version 1.4.0.233
  • This plug-in detects the presence of iTunes when opening iTunes Store URLs in a web page with Firefox.

Application

  • User Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:30.0) Gecko/20100101 Firefox/30.0

More Information

Application Basics
------------------
Name: Firefox
Version: 30.0
User Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:30.0) Gecko/20100101 Firefox/30.0
Crash Reports for the Last 3 Days
---------------------------------
All Crash Reports
Extensions
----------
Name: Adblock Plus
Version: 2.6.13
Enabled: true
ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
Name: NoScript
Version: 2.9.0.14
Enabled: true
ID: {73a6fe31-595d-460b-a920-fcc0f8843232}
Name: Ubuntu Firefox Modifications
Version: 2.8
Enabled: true
ID: ubufox@ubuntu.com
Name: Ubuntu Online Accounts
Version: 0.5
Enabled: true
ID: online-accounts@lists.launchpad.net
Name: Unity Desktop Integration
Version: 2.4.8
Enabled: true
ID: webapps-team@lists.launchpad.net
Name: Unity Websites integration
Version: 2013.09.20.beta
Enabled: true
ID: {2e1445b0-2682-11e1-bfc2-0800200c9a66}
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.link.open_newwindow: 2
browser.places.smartBookmarksVersion: 7
browser.search.update: false
browser.search.useDBForOrder: true
browser.sessionstore.upgradeBackup.latestBuildID: 20140608211208
browser.startup.homepage: about:starpage
browser.startup.homepage_override.buildID: 20140608211208
browser.startup.homepage_override.mstone: 30.0
browser.urlbar.autocomplete.enabled: false
dom.mozApps.used: true
extensions.lastAppVersion: 30.0
network.cookie.prefsMigrated: true
places.database.lastMaintenance: 1477012431
places.history.expiration.transient_current_max_pages: 79423
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
print.print_bgcolor: false
print.print_bgimages: false
print.print_colorspace: default
print.print_downloadfonts: false
print.print_duplex: 1
print.print_evenpages: true
print.print_in_color: true
print.print_margin_bottom: 0.500000012107193
print.print_margin_left: 0.500000012107193
print.print_margin_right: 0.500000012107193
print.print_margin_top: 0.500000012107193
print.print_oddpages: true
print.print_orientation: 0
print.print_page_delay: 50
print.print_paper_data: 0
print.print_paper_height: 279.40
print.print_paper_name: na_letter
print.print_paper_size_type: 1
print.print_paper_size_unit: 1
print.print_paper_width: 215.90
print.print_plex_name: default
print.print_resolution: 600
print.print_resolution_name: default
print.print_scaling: 1.00
print.print_shrink_to_fit: true
print.print_to_file: false
print.print_unwriteable_margin_bottom: 56
print.print_unwriteable_margin_left: 25
print.print_unwriteable_margin_right: 25
print.print_unwriteable_margin_top: 25
privacy.cpd.offlineApps: true
privacy.cpd.sessions: false
privacy.cpd.siteSettings: true
privacy.donottrackheader.enabled: true
privacy.sanitize.migrateFx3Prefs: true
privacy.sanitize.timeSpan: 0
security.disable_button.openCertManager: false
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1475337593
Graphics
--------
Adapter Description: X.Org -- Gallium 0.4 on AMD RV730
Device ID: Gallium 0.4 on AMD RV730
Driver Version: 3.0 Mesa 9.2.1
GPU Accelerated Windows: 0/4 Basic
Vendor ID: X.Org
WebGL Renderer: X.Org -- Gallium 0.4 on AMD RV730
windowLayerManagerRemote: false
AzureCanvasBackend: cairo
AzureContentBackend: cairo
AzureFallbackCanvasBackend: none
AzureSkiaAccelerated: 0
JavaScript
----------
Incremental GC: true
Accessibility
-------------
Activated: true
Prevent Accessibility: 0
Library Versions
----------------
NSPR
Expected minimum version: 4.10.4
Version in use: 4.10.4
NSS
Expected minimum version: 3.16 Basic ECC
Version in use: 3.16 Basic ECC
NSSSMIME
Expected minimum version: 3.16 Basic ECC
Version in use: 3.16 Basic ECC
NSSSSL
Expected minimum version: 3.16 Basic ECC
Version in use: 3.16 Basic ECC
NSSUTIL
Expected minimum version: 3.16
Version in use: 3.16