Cannot suppress browser logs in Geckodriver - selenium-firefoxdriver

Question

I am running Geckodriver (and Firefox) and apparently Gecko is flooded with an error from FF (see below). I am not using any addons and I don't know why is it there. I wanted to suppress it so that the logs do not contain anything from the browser. I set log level to fatal but it seems that it only affects geckodriver's own logs, but not those from the browser.
I start geckodriver with this command:
./geckodriver.exe --port=4567 --binary="C:\Program Files (x86)\Mozilla Firefox\firefox.exe" --log fatal
Then I create session by manually sending HTTP request POST request to \session:
{
"desiredCapabilities": {
"acceptInsecureCerts": true,
"loggingPrefs": {
"server": "OFF",
"performance": "OFF",
"driver": "OFF",
"browser": "OFF",
"client": "OFF"
},
"browserName": "firefox",
"moz:firefoxOptions": {
"args": []
},
"version": "",
"platform": "ANY"},
"requiredCapabilities": {},
"capabilities": {
"desiredCapabilities": {
"acceptInsecureCerts": true,
"loggingPrefs": {
"server": "OFF",
"performance": "OFF",
"driver": "OFF",
"browser": "OFF",
"client": "OFF"
},
"browserName": "firefox",
"version": "",
"platform": "ANY"
},
"requiredCapabilities": {},
"alwaysMatch": {
"acceptInsecureCerts": true
}
}
}
And this is the output I'm getting within the first few seconds:
1496327277282 addons.manager ERROR startup failed: [Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIFile.create]" nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)" location: "JS frame :: resource://gre/modules/FileUtils.jsm :: FileUtils_getDir :: line 70" data: no] Stack trace: FileUtils_getDir()#resource://gre/modules/FileUtils.jsm:70 < FileUtils_getFile()#resource://gre/modules/FileUtils.jsm:42 < validateBlocklist()#resource://gre/modules/AddonManager.jsm:671 < startup()#resource://gre/modules/AddonManager.jsm:834 < startup()#resource://gre/modules/AddonManager.jsm:3129 < observe()#resource://gre/components/addonManager.js:65
JavaScript error: resource://gre/modules/AddonManager.jsm, line 1657: NS_ERROR_NOT_INITIALIZED: AddonManager is not initialized
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
LdrLoadDll: Blocking load of 'hook.dll' -- see http://www.mozilla.com/en-US/blocklist/
...
This line is repeated hundreds of times per second
How to suppress this log or fix the root cause?
EDIT:
After some research I found out that this line is printed to the standard output when I run firefox.exe from command line (without gecko)

Answer 1

I use Eclipse IDE for Java Developers Version: 2019-12 (4.14.0),
Firefox75.0 (64 bit),
testng 7.1.0,
selenium-java 3.141.59
eclipse Console display
LdrLoadDll: Blocking load of 'safemon64.dll' -- see http://www.mozilla.com/en-US/blocklist/
I don't know how to handle it.