Rated 1 out of 5 stars


流氓? Rated 1 out of 5 stars


Rated 1 out of 5 stars

blocked? virus ?

Rated 1 out of 5 stars

December 16, 2013: Microsoft .NET Framework Assistant (malware) , This* is LISTED on Mozilla's Blocked Add-Ons*.. so Why is it still even offered..???

Rated 3 out of 5 stars

The userscripts that you can get work well for the most part pretty awesome addon

like a virus Rated 1 out of 5 stars

this acts like a virus. comes out of nowhere and requires help from the internet to get rid of.

Rated 5 out of 5 stars

Nice tool to protect users from malwares
Thank you for your work

Rated 1 out of 5 stars

The most useless Addon I know.

Rated 5 out of 5 stars

useful and must have plugin!

Rated 4 out of 5 stars

"You can only remove it when you do this:
In Registry Editor:
- Go to
HKEY_LOCAL_MACHINE \ SOFTWARE \ Mozilla \ Firefox \ Extensions
- Delete value {20a82645-c095-46ed-80e3-08825760534b}
In Firefox:
- Go to about:config
- enter microsoftdotnet in Filter
- Right-click general.useragent.extra.microsoftdotnet
- select Reset.
- Restart Firefox."

NOTE: In later editions of Firefox it is only the above key that needs to be deleted, there is no corresponding entry in about:config. Restarting Firefox after deleting the key will no longer display this add-on in add-ons

Rated 1 out of 5 stars


Ok Rated 4 out of 5 stars

Do not instal again for long time :)

いい Rated 3 out of 5 stars

この拡張機能は、インストールされている。NET Frameworkバージョン3.5 SP1が必要で、ClickOnceをサポートするためにMicrosoftから発行され、唯一の公式拡張機能です。あなたは無料のマイクロソフトをダウンロードすることができます。NET Frameworkのアシスタント1.2.1今。

from (http://asp9.com/empowering-users/)

Necessario ma ingombrante. Siate consapevoli. Rated 3 out of 5 stars

Necessario ma ingombrante. Siate consapevoli.

Goodware Rated 5 out of 5 stars

I'm not a Developer so I don't have a use for this add-on but that doesn't make it useless, Believe it or not there ARE people who use .application files.

P.S. don't whine; at the very least be thankful that Microsoft registered their add-on with Mozilla.

P.P.S. If you want to remove it then Reinstall it through AMO (addons.mozilla.org)

Help Please Rated 1 out of 5 stars

OK I need an opinion .. I want to download the newest version of Firefox but it says I will have the Microsoft .net framework assistant disabled because the one I have isn't compatible.. DO I NEED to have this update to successfully run Firefox ( I have no clue and NOT ashamed to say so ) HELP Please

Not needed for using Firefox, not harmful either

See here: http://support.microsoft.com/kb/963707 to remove it. It's simply an extension for launching a specific type of .NET Framework Application called a "ClickOnce application". If you don't know what one is, you can either safely ignore it completely or follow the instructions above to uninstall.

Huh? Rated 1 out of 5 stars

Well I always do manual updates. So I hadn't updated for at least 3 weeks. Opened Firefox and it installs. Uninstalled through the add-on manager. Maybe I did download it in an update. Didn't expect a Windows update to include an add-on for Firefox.

I guess it's good for Firefox to be mainstream but it's not IE for a reason, a GOOD reason. Lets keep it that way.

Rated 5 out of 5 stars

It's not at all useless if you work with and use Visual Studio.

Much Ado About Nothing Rated 4 out of 5 stars

Seriously, all the fuss that you chicken littles are making over this little Add-on: Windows Update setting changes, patch installs, registry hacks, forum posts, whining, crying, etc.

I've said it before but I think it bears repeating.

* This Add-on helps Firefox launch applications from the browser that were deployed with Microsoft's Click-Once technology (think "kind of like Java applets"), that way you aren't "forced" to use Internet Explorer.

* This Add-on DOES NOT circumvent security

* Technically, this Add-on WAS NOT installed without permission. It was part of a Windows update which, if you received, you gave consent to.

* True, the Add-on cannot be uninstalled through the Add-ons Manager, but it CAN be disabled through it. And for the crybabies, Microsoft provides an update to remove it.

Guess what? There is another extension that was "installed without permission" (so to speak), cannot be removed through the Add-ons manager and also helps apps run from/within the browser. It's called...

Java Quick Starter

But I don't hear anybody b!tching about that one or talking smack about Sun/Oracle. If Microsoft gets your panties all twisted then STOP USING WINDOWS!

Haters gonna hate...

This user has a previous review of this add-on.

ClickOnce forever Rated 1 out of 5 stars

Not needed, big pain to get rid of.

This from Microsoft:

"A key goal of ClickOnce is to provide a trustworthy deployment model for users to be able to download and execute applications from centrally managed servers without requiring administrator privileges on the client machine"

I am the administrator (one and only user) and don't need to circumnavigate admin. privileges via 'ClickOnce'. Many here are probably in the same boat.

Microsoft deliberately built this extension as a "machine-level" application, meaning you (the user) can't uninstall it, even if your the 'administrator'.

.netsp1 supposedly addresses this problem, but I, like many commenting here can't get it update to the fix (at least through Firefox) - catch 22.

I eventually deleted the extension following the suggestion below before manually download the update from MS, so I hope this is the last word, but as a backup I'll use this update (hopefully) to finish off the beast.

As a side note, FF needs to have a better handle on its add-ons or they are going to continue to lose market share. This automatic add-on update at the start of FF needs to go and they need to have an uninstall button for all non-essential extensions. This is my second unwanted extension I couldn't uninstall through the 'add-on' panel and I'm not happy.