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Malwarebytes Browser Guard slows page load in Google Chrome and Firefox.


BretAB

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Hi,

In maybe last month or so, I've noticed that in both MWB v4.4.10 and the new v4.5.0, that Malwarebytes Browser Guard is causing very noticeable slow page loading. Both Chrome and Firefox exhibit this, even when loading a LAN address like your local router's web management page, takes like 5 seconds. Well known WAN pages are even worse. As far as the WAN, I even tried several different well known public DNS servers with the same slow site load results.

In both browsers, I've disabled ALL add-ins/Extension EXCEPT Malwarebytes Browser Guard, and the slow-load problem is apparent. If I then  [WORKAROUND] disable Malwarebytes Browser Guard (not recommended, but necessary for these tests), the slow load problem on both the LAN and WAN go away ad the pages load more or less instantly as expected and desired.

I don't have the time to debug this, but thought I'd just make this thread for the Community to find until this gets sorted out by "The Management".

Regards . . .

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***This is an automated reply***

Hi,

Thanks for posting in the Malwarebytes for Windows Help forum.

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You could do the following so they can see what is going wrong on your computer.

NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

 

  • Download the Malwarebytes Support Tool
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Hi SonyPhilipsDigitalInterface,

I won't even get into the issues I encountered running that support tool on my licensed MWB software (ie. it said no Malwarebytes installed after attempting to repair by re-installing MWB). Then I then had to manually download MWB v4.5 and re-install that worked thankfully. Then I run just the report generator, and took a vacation while that took forever. Then I decide rather than risk hosing a working Windows installation (on a physical PC) at year-end . . . 

1. I opened a brand new Windows session in a VMware VM (ie. Windows fully patched with all current Windows updates as of 12/3/21).

2. I installed Google Chrome. I test Chrome to local router console page and it's instant.

3. Next I install Malwarebytes Browser Guard: Problem is duplicated in the fresh VM (ie. at least 5 second delay to open the router page).

4. I download and install the Support Tool in the VM and run the report function (makes zip).

5. Rather than publish that zip publically, I'd prefer to open private support case.

See, another whole day down the drain. This is twice in the last 6 months. I know the support people do a good job, but I'm not retired and really don't have time for this. If I find out anything useful, I'll post back. Thanks for your help along the way.

Regards . . .

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  • Root Admin

Hello @BretAB

If you want to work on this via email from our Support Desk you're more than welcome to. Please note though that due to the holiday season it may be two weeks before you get a reply at this time.

https://support.malwarebytes.com/hc/en-us/requests/new

If you'd like me to assist you here on the Forums let me know and I'll be more than happy to assist you.

Thank you

 

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@BretAB Sorry to hear that, anyway they will find a solution, they always do! I work just as you also with various VM's in VMWare Workstation and i could not see the glitches as you see.

Now I'm curious what could be the problem, it could be a flaw like you say but it not affect everyone.

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Hi AdvancedSetup & Porthos,

I'm more comfortable now that Porthos mentioned the zips are not publically available. And I really appreciate your offer to look into this. So . . .

I've attached the zip from the fresh VM I made. See my post yesterday above (ie. has steps "1" through "5") for details of the VM.

I look forward to your thought, comments, suggestions. etc..

Regards . . .

mbst-grab-results.zip

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The original post used a live/physical machine. The zip was from a VM (same OS, but at a 12/3/21 Windows update level).

Yes, the VM exhibits the same problem. Note that the VM is bare bones with only Chrome and the Browser Guard freshly installed yesterday. No MWB and only the native WinDefendr already installed as expected. As we both know, VMs are perfect for separating the wheat from the chaff and letting us mess around without tears. Btw, I have a "B4 Chrome & MWB's Browser Guard" snapshot in case we need to cleanup a nasty little spill :->

 

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Out of curiosity, I just checked and it doesn't appear to be a dns response time issue. The attached "with" and "without" tests,  done in the VM,  are virtually (haha, pun) the same in the VM. Take a look at the "Time (ms)" columns in the attached pdf.

Hmm, this could be a Microsoft Windows "window management"/polling problem (ie. window opening delayed due to Windows polling problem). I've run into this before. In order not to muddy the waters of this thread, I'll pm you both on this when I get a bit more time. 

Hmm, could this be a network hardware issue? I'll try a manual input of some public dns servers into Windows IPv4 properties, and try a direct wire from the VM host's physical nic to the WAN bridge. Hmm, maybe I should try the ISP's dns servers too, but that is unlikely solution. 

HP.com dns 'Time (ms)' test.pdf

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  • Root Admin

Please follow the directions from the following topic and clean up Google Chrome

 

 

 

 

 

Please consider changing your default DNS Server settings. Please choose one provider only

DNS is what lets users connect to websites using domain names instead of IP addresses

  • Google Public DNS: IPv4   8.8.8.8 and 8.8.4.4   IPv6   2001:4860:4860::8888 and 2001:4860:4860::8844
  • Cloudflare: IPv4   1.1.1.1 and 1.0.0.1   IPv6   2606:4700:4700::1111 and 2606:4700:4700::1001
  • OpenDNS: IPv4   208.67.222.222 and 208.67.220.220  IPv6  2620:119:35::35 and 2620:119:53::53
  • DNSWATCH: IPv4   84.200.69.80 and 84.200.70.40   IPv6  2001:1608:10:25::1c04:b12f and 2001:1608:10:25::9249:d69b

The Ultimate Guide to Changing Your DNS Server
https://www.howtogeek.com/167533/the-ultimate-guide-to-changing-your-dns-server/

Here is a YouTube video on Changing DNS settings if needed

 

 

If your hardware is not high end and you're running VM on it that can slow down processes for the Physical and VM both.

 

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  • 3 months later...
  • Root Admin

Due to the lack of feedback, this topic is closed to prevent others from posting here.

If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this topic with your request.

This applies only to the originator of this topic. Other members who need assistance please start your own topic in a new thread.

Tips to help protect from infection

Thanks

 

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