65.0.1 high disk activity

[jtruchon]

Hello;

After updating to 65.0.1 (Win 10), I'm noticing a lot of disk activity. There is even a lot of disk activity after pages are loaded and ff is idle. I've searched the forum and saw this mentioned on some older version of ff, but didn't see anything recent.

Any way to fix this?

Thank

[Brummelchen]

disable prefetch?
https://support.mozilla.org/en-US/kb/ho ... onnections

[therube]

A miner on the pages you're visiting?

[jtruchon]

@ Brummelchen, tried disabling prefetch, didn't help. @ therube, don't think it's the pages I'm visiting, do not see the high disk activity with Chrome on the same pages.

Thanks

[Grumpus]

Do you have a link to those pages of high activity?

[jtruchon]

@ Grumpus, it's not any specific pages, I am seeing high disk activity on any pages.

Thanks

[malliz]

And your Anti Virus program is?

[jtruchon]

Windows Defender

[Brummelchen]

post content (not raw) from about:support please.

[jtruchon]

Data from about:support

Application Basics
------------------

Name: Firefox
Version: 65.0.1
Build ID: 20190211233335
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
OS: Windows_NT 10.0
Multiprocess Windows: 1/1 (Enabled by default)
Web Content Processes: 5/4
Enterprise Policies: Inactive
Google Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Crash Reports for the Last 3 Days
---------------------------------

All Crash Reports Firefox Features
--------------------------------------

Name: Firefox Monitor
Version: 2.8
ID: fxmonitor@mozilla.org

Name: Firefox Screenshots
Version: 35.0.0
ID: screenshots@mozilla.org

Name: Form Autofill
Version: 1.0
ID: formautofill@mozilla.org

Name: Web Compat
Version: 3.0.0
ID: webcompat@mozilla.org

Name: WebCompat Reporter
Version: 1.1.0
ID: webcompat-reporter@mozilla.org

Extensions
----------

Name: Checker Plus for Google Calendar™
Version: 25.0.3
Enabled: true
ID: checkerplusforgooglecalendar@jasonsavard.com

Name: Evernote Web Clipper
Version: 6.13.2
Enabled: true
ID: {E0B8C461-F8FB-49b4-8373-FE32E9252800}

Name: LastPass: Free Password Manager
Version: 4.24.0.5
Enabled: true
ID: support@lastpass.com

Name: Navigate Up WE
Version: 3.1
Enabled: true
ID: navigateup-we@DW-dev

Name: New Tab from Location Bar
Version: 3.1.1
Enabled: true
ID: newtabfromlocationbar@piro.sakura.ne.jp

Name: Open Link with New Tab
Version: 1.0
Enabled: true
ID: Open-Link-with-New-Tab@sienori

Name: Reload in address bar
Version: 1.8
Enabled: true
ID: {e1ed7a80-7c11-4f7e-968b-79b551a0067f}

Name: Screengrab!
Version: 2.17
Enabled: true
ID: {02450914-cdd9-410f-b1da-db004e18c671}

Name: uBlock Origin
Version: 1.18.4
Enabled: true
ID: uBlock0@raymondhill.net

Name: Undo Close Tab
Version: 4.4.3
Enabled: true
ID: {4853d046-c5a3-436b-bc36-220fd935ee1d}

Name: Open Link in New Tab
Version: 1.0
Enabled: false
ID: {c064b4e8-a82e-415f-9d31-8516e613182e}

Security Software
-----------------

Type: Windows Defender Antivirus

Type: Windows Defender Antivirus

Type: Windows Firewall

Graphics
--------

Features
Compositing: Direct3D 11 (Advanced Layers)
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled
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WebGL 2 Driver Version: OpenGL ES 3.0 (ANGLE 2.1.0.790e8e6b4179)
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Direct2D: true
Off Main Thread Painting Enabled: true
Off Main Thread Painting Worker Count: 3
DirectWrite: true (10.0.17763.168)
GPU #1
Active: Yes
Description: Intel(R) HD Graphics 4600
Vendor ID: 0x8086
Device ID: 0x0412
Driver Version: 20.19.15.4531
Driver Date: 9-29-2016
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Diagnostics
AzureCanvasAccelerated: 0
AzureCanvasBackend: direct2d 1.1
AzureCanvasBackend (UI Process): skia
AzureContentBackend: direct2d 1.1
AzureContentBackend (UI Process): skia
AzureFallbackCanvasBackend (UI Process): cairo
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Decision Log
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
WEBRENDER_QUALIFIED:
blocked by env: Not Nvidia




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-----

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------------------------------

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print.printer_Microsoft_Print_to_PDF.print_reversed: false
print.printer_Microsoft_Print_to_PDF.print_scaling: 1.00
print.printer_Microsoft_Print_to_PDF.print_shrink_to_fit: true
print.printer_Microsoft_Print_to_PDF.print_to_file: false
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_bottom: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_left: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_right: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_top: 0
privacy.cpd.cookies: false
privacy.cpd.downloads: false
privacy.cpd.formdata: false
privacy.cpd.history: false
privacy.cpd.offlineApps: true
privacy.sanitize.pending: [{"id":"newtab-container","itemsToClear":[],"options":{}}]
privacy.sanitize.timeSpan: 0
security.sandbox.content.tempDirSuffix: {e6d81564-f499-46bc-9b99-7869b540f7a7}
security.sandbox.plugin.tempDirSuffix: {8c9640f4-be3d-491c-879a-8aa747b5a515}
services.sync.declinedEngines: addons,passwords,prefs
services.sync.engine.addons: false
services.sync.engine.addresses: true
services.sync.engine.addresses.available: true
services.sync.engine.passwords: false
services.sync.engine.prefs: false
services.sync.engine.prefs.modified: false
services.sync.lastPing: 1550986600
services.sync.lastSync: Sun Feb 24 2019 09:50:01 GMT-1000 (Hawaii-Aleutian Standard Time)
signon.importedFromSqlite: true
signon.rememberSignons: false
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1549342028
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Important Locked Preferences
----------------------------

Places Database
---------------

JavaScript
----------

Incremental GC: true

Accessibility
-------------

Activated: false
Prevent Accessibility: 0
Accessible Handler Used: true
Accessibility Instantiator:

Library Versions
----------------

NSPR
Expected minimum version: 4.20
Version in use: 4.20

NSS
Expected minimum version: 3.41
Version in use: 3.41

NSSSMIME
Expected minimum version: 3.41
Version in use: 3.41

NSSSSL
Expected minimum version: 3.41
Version in use: 3.41

NSSUTIL
Expected minimum version: 3.41
Version in use: 3.41

Sandbox
-------

Content Process Sandbox Level: 5
Effective Content Process Sandbox Level: 5

Internationalization & Localization
-----------------------------------

Application Settings
Requested Locales: ["en-US"]
Available Locales: ["en-US"]
App Locales: ["en-US"]
Regional Preferences: ["en-US"]
Default Locale: "en-US"
Operating System
System Locales: ["en-US"]
Regional Preferences: ["en-US"]

[therube]

Does it happen if you restart in Safe Mode?

[Grumpus]

Some of the disc activity could be uBlock updating the filters.

[mightyglydd]

Does it happen if you restart in Safe Mode?

[jtruchon]

Yes, I see high disk activity in Safe Mode

Thanks

[therube]

How are you determining "disk activity"?

As a test, create a new, clean Profile.
Open that.
Are you observing high disk activity with that?


(MarioNet) New browser attack lets hackers run code even after users leave a web page.