Hey, so this morning I woke up and my ad blocker was gone from my browser. I tried force updating, uninstalling and reinstalling, uninstalling and deleting my data and reinstalling, and even uninstalling with the removal tool and reinstalling, and it’s still gone.
It’s on my other pc working fine, I don’t know why its not on here.
Hi, see if this helps: https://forum.avast.com/index.php?topic=239690.0
Yes, I tried both forcing an update and several reinstalls
So, does it work now…?
No, I said it didn’t in the base post.
Please post your Diagnostic Information output. You can get it by visiting this link: secure://settings/diagnosticInfo
I am currently running a system restore on the laptop in question, so I will get that once it has finished, or if that (somehow) fixes it I will update this topic
executable_path=C:\Program Files (x86)\AVAST Software\Browser\Application\AvastBrowser.exe
profile_path=C:\Users\Bailey\AppData\Local\AVAST Software\Browser\User Data\Default
os_version=Windows 10 v2004 (x64)
av_version=20.10.2442
urlscanner_version=1.6.0.266
host_prefix=
browser_version=86.1.6938.199 (Official Build (64-bit))
cgid=100
cid=2103
uid=db48939b4ca74c86aa6dc2d4829f31c7
Channel: stable
OS language: en-us
Browser language: en-US
Search Engine URL: https://www.bing.com/search?pc=CBHS&ptag=N{bing:campaignId}D{bing:installDate}A9DFA1A1FF2&form={bing:formCode}&conlogo=CT3210127&q={searchTerms}
Omaha version: 1.8.1065.0
Enabled extensions:
ahfgeienlihckogmohjhadlkjgocpleb : Web Store : 0.2
ekmkelgimdicdgkflkakgmjcghgpdnji : Messaging : 1.3.0.202
kmendfapggjehodndflmmgagdbamhnfd : CryptoTokenExtension : 0.9.74
mfehgcgbbipciphmccgaenjidiccnmng : Cloud Print : 0.1
mhjfbmdgcfjbbpaeojofohoefgiehjai : Chrome PDF Viewer : 1
nkeimhogjdpnpccoofpliimaahmaaome : Google Hangouts : 1.3.15
pkedcjkdefgpdelpbcmbmeomcjbeemfm : Chrome Media Router : 8620.824.0.0
Disabled extensions:
–
When I launched the browser after system restore, it showed ad block, but on the security and privacy page it was turned off and would not turn on, then once I went to the extension settings, it was on, and using the forced update seemed to remove everything on the page
I have never seen that crypto token extension either what is that? if its a virus, I just ran a full scan with avast antivirus and it didn’t catch that?
Edit: Should I try the removal tool and reinstall again or do I need to just fully delete the files for the browser? Also, what files would I need to delete
Edit 2: Is that just an extension in the browser? It shows up on the diagnostics for my other pc, and a search of the forums shows this popping up on a ton (if not all) diagnostic scans. If it is supposed to be there, what is it for?
Update to the latest version (87.0): https://forum.avast.com/index.php?topic=244790.0
I have updated, and it’s still not there.
Here are the diagnostics after relaunching with the update
–
executable_path=C:\Program Files (x86)\AVAST Software\Browser\Application\AvastBrowser.exe
profile_path=C:\Users\Bailey\AppData\Local\AVAST Software\Browser\User Data\Default
os_version=Windows 10 v2004 (x64)
av_version=20.10.2442
urlscanner_version=1.6.0.266
host_prefix=
browser_version=87.0.7480.89 (Official Build (64-bit))
cgid=100
cid=2103
uid=db48939b4ca74c86aa6dc2d4829f31c7
Channel: stable
OS language: en-us
Browser language: en-US
Search Engine URL: https://www.google.com/search?client=avast&q={searchTerms}
Omaha version: 1.8.1065.0
Enabled extensions:
ahfgeienlihckogmohjhadlkjgocpleb : Web Store : 0.2
ekmkelgimdicdgkflkakgmjcghgpdnji : Messaging : 1.3.0.202
kmendfapggjehodndflmmgagdbamhnfd : CryptoTokenExtension : 0.9.74
mfehgcgbbipciphmccgaenjidiccnmng : Cloud Print : 0.1
mhjfbmdgcfjbbpaeojofohoefgiehjai : Chrome PDF Viewer : 1
nkeimhogjdpnpccoofpliimaahmaaome : Google Hangouts : 1.3.15
pkedcjkdefgpdelpbcmbmeomcjbeemfm : Chrome Media Router : 8720.1005.0.2
Disabled extensions:
Wait for one of the devs and/or submit a ticket: https://support.avast.com/contact (paid versions)
Avast secure browser is a free product though, isn’t it? Or is there another reason to select paid product?
Correct, but you can get support for it, if you use one of the paid products. 
I got it! I believe (I don’t know anything about programming but this is my best guess) that when my browser tried to update this morning there was an error and it left some temporary files uninstalled, hence why several plug ins were missing. But since they existed, the reinstalls didn’t try to install them again. So, after uninstalling a 5th time and going to make sure all files were deleted, I found the .tmp files that had avast files in them and deleted them too. Now everything’s working fine.
Good news, thanks for the feedback. 
After experiencing an almost identical problem, I can offer the following method to delete remaining corrupted Avast files after uninstalling…
Avast do have a little publicised ‘Uninstall Utility’ program - https://www.avast.com/en-gb/uninstall-utility , which in my case after following the instructions, successfully deleted all remaining Avast files, so a ‘clean’ re-install could be implemented, thus finally reinstating the ‘Adblock’ and ‘Bank Mode’ extensions for my Avast Browser!