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Installed MWB and now browsers won't work

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1 minute ago, Randy_S said:

I installed MWB and rebooted my computer.  Now when MWB is running Chrome, FFox, nor Edge browsers will work.  I disable MWB and browsers will work again.  What is wrong? 


I'm sorry the software isn't working properly but we'll do our best to help.

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5 minutes ago, Randy_S said:

Great, here is the logs. 

I believe it is related to Sophos. It is not compatible with Malwarebytes.

Please refer to this support article which lists several known applications which conflict with the Web Protection in Malwarebytes currently, which includes Sophos anti-virus products.

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Just now, Randy_S said:

Thanks Porthos!   Do you know if there are any AV products compatible with MWB or is MWB enough these days?  

I personally believe in using Malwarebytes with the built in Windows Defender. That is more than enough if set up correctly.

If you wish to go that route I can advise further.

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  • Root Admin

It allows both Windows Defender Antivirus as well as Malwarebytes Premium to both run together and help protect your system using both programs.

An added layer of protection just in case one program misses something the other should catch it


Edited by AdvancedSetup
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Just now, Randy_S said:

Do you know the reason for that suggestion? 

Having it on turns off Defenders protection.

I will also add.

The reason many of us members are pushing Keeping Defender on is the following.

Malwarebytes does not target script files during a scan... That means MB will not target; JS, HTML, VBS, .CLASS, SWF, BAT, CMD, PDF, PHP, etc.

It also does not target documents such as; PDF, DOC, DOCx, XLS, XLSx, PPT, PPS, ODF, etc.

It also does not target media files;  MP3, WMV, JPG, GIF, etc.

Malwarebytes will detect files like these on execution-only.


Malwarebytes is not designed to function like normal AV scanners and uses a new kind of scan engine that relies mostly on heuristics detection techniques rather than traditional threat signatures.  Malwarebytes is also designed to look in all the locations where malware is known to install itself/hide, so a full or custom scan shouldn't be necessary, especially on any sort of frequent basis (like daily), especially since the default Threat Scan/Quick Scan checks all loading points/startup locations, the registry, all running processes and threads in memory, along with all system folders, program folders, and data folders as well as any installed browsers, caches, and temp locations.  This also means that if a threat were active from a non-standard location because Malwarebytes checks all threads and processes in memory, it should still be detected.  The only threat it *might* miss would be a dormant/inactive threat that is not actively running/installed on a secondary drive, however, if the threat were executed then Malwarebytes should detect it.  Additionally, whenever a new location is discovered to be used by malware the Malwarebytes Research team adds that location dynamically to the outgoing database updates so the locations that are checked by the default Threat/Quick Scan in Malwarebytes can be changed on the fly by Research without requiring any engine or program version updates/upgrades.

An AV will catch the file just by downloading it or just opening a folder with a detected file in it.

For example, you get an email with an infected attachment, Malwarebytes will not even blink until you run it yet Defender will detect it if it is in their database without even actually clicking on it. Remember the list of files Malwarebytes does not target.

Then I will leave you with this.

As good as Malwarebytes is, it is just a layer of protection.

Using a browser that has Ublock Origin and the Malwarebytes Browser guard enabled is also a layer of protection.

Not opening attachments from an email unless you were expecting it from a specific user during a specific time period.

Do not use Torrents. Do not install every free software you find. Do not click links in an unknown email. Go directly to the site listed in the email.

Having a monthly image of your computer on an external drive that is only connected during the backup is actually better than any protective software ever made. Macrium Reflect free is the program I use and place on every computer I service.

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  1. Recommend using a Password Manager for all websites, etc. that require a password. Never use the same password on more than one site.
  2. Keep all software up to date - PatchMyPC - https://patchmypc.com/home-updater#download
  3. Keep your Operating System up to date and current at all times - https://support.microsoft.com/en-us/windows/windows-update-faq-8a903416-6f45-0718-f5c7-375e92dddeb2
  4. Install a content blocker for your browser. Malwarebytes Browser Guard (Free) and / or uBlock Origin
    Chrome: https://chrome.google.com/webstore/detail/malwarebytes-browser-guar/ihcjicgdanjaechkgeegckofjjedodee 
  5. Further tips to help protect your computer data and improve your privacy: https://forums.malwarebytes.com/topic/258363-tips-to-help-protect-from-infection/ 


Further reading if you like to keep up on the malware threat scene: Malwarebytes Blog  https://blog.malwarebytes.com/

Hopefully, we've been able to assist you

Thank you for using Malwarebytes


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1 hour ago, Porthos said:

Be sure to disable the following setting in Malwarebytes.


I'm curious.  Why do you have "Scan for rootkits" and "Use expert system algorithms to identify malicious files turned off"?  I have those on and have had no issues (I also use Windows Defender).  Thanks.

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Scanning for Rootkits uses a different technology added to the scan that runs much slower. Rootkits are very rare so you're putting a bit more stress on a hard drive or SSD doing so often as well as the scan taking longer. If you're okay with that then it's okay to do so.

Using the Expert algorithm is going to produce a LOT more false positives and it is recommended that you not enable that unless asked to


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22 hours ago, Randy_S said:

AdblockPlus (not as good as it used to be) and uBlock Origin have been mandatory on my Chrome & Firefox for years now.  

Do not use uBlock Origin and AdBlock Plus at the same time - https://github.com/gorhill/uBlock/blob/1a7f74aec99880fd0dcce81465120635f94a19d7/README.md#note-for-all-browsers

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  • 2 months later...


I found this thread because I wanted to know if I can run uBlock and Browser Guard together; it seems I can.

About Windows Defender: 'Register MB in Win Security Center' was turned on in my settings, Defender did not run.

After turning this setting off, I activated Defender, updated it and let it do a quick scan. Now it is running alongside MBAM Premium.

However, Win now flags a problem (translated from German): 'Search online for an Antivirus software'.

The MBAM manual says:

"Malwarebytes Premium and Malwarebytes Trial versions register as a security solution on your Windows device by default."

Win Security Center says: 'No Antivirus Software found' (Hardcopy attached).

How should I proceed now?


Thank you.


PC: Win 7 Pro SP1 64-bit, MBAM Premium, MBAM WFC



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> I found this thread because I wanted to know if I can run uBlock and Browser Guard together; it seems I can.

You might want to disable Ads/Trackers blocking in Browser Guard, as uBo already does a very good job and it is likely to cause conflicts (including anti-adblock)


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