Add on builder helper could not be installed because firefox cannot modify the needed file - firefox

I am trying to run the sample program for add-on Firefox.
from https://builder.addons.mozilla.org/package/xxxxxx/latest
When I try to do the "Test"
Its asking me to download:
=
Install Add-on Builder Helper
To test this add-on, please install the Add-on Builder Helper add-on
When I try to install I am getting the following error:
add on builder helper could not be installed because firefox cannot modify the needed file
can you please let me know how to resolve this.
I googled it but could not the solution form my case.
I found during my saerach that some said "please change the length of the package" I have no idea how to do that

You need to run the installation for Add-On Builder Helper as administrator. Windows 7 is more restrictive with rights to the Program Files folder than previous versions of Windows; non-administrator users don't have write access to that folder tree.

It might be this:
https://wiki.mozilla.org/Jetpack/Release_Notes/1.0#Known_Issues
The first known issue there highlights a weakness on Windows where very long path names prevent installation. Unsure how long the path to your profile is. See this Mozilla support article for more info on profile directory locations:
http://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data?s=location+of+profile&r=1&as=s

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This might seem like a basic question, but let me explain.
I'm currently trying to get CouchDB running on Windows. Usually (from what I can tell watching several YT tutorials) you just go to couchdb.apache.org/download and download the windowsx64 version. Then open it and a install wizard should appear.
However when I download the file I get a file named "fd15d91c1e214c3451bef296564086f6a9266e848d57eaa8ac596e3765939578" which isn't openable and doesn't give me a wizard.
Is the current CouchDB installation corrupted? Am I doing something wrong?
I just tried http://couchdb.apache.org/, chose the Download link from the top navigation bar, then Windows(x64) for version 2.1.0. This kicked-off downloading the file apache-couchdb-2.1.0.msi.
Definitely try another browser or restart your machine.

Pivot4J not showing int Pentaho Business Analytics - Community Edition

I am taking a course on Coursera and we have been asked to use the community version of Pentaho Business Analytics (PBA).
I have download the latest PBA server and plugin for Pivot4J, however, when I launch the web interface and click on new, I do not see the Create Pivot4J View as shown in most demos.
I have launched the interface on 2 systems with Windows 8.1 Pro and Windows 10 Pro OS running on them.
Can someone help me out please as the deadline for me to turn in my work is in 3 days?
Thank you.
Please see screenshot below of what I have tried to explain above.
http://localhost:8080 Home Page
Try with 0.9 version from pivot4j site and maybe Pentaho 6 version is note yet supported so try 5.4 ba server.
You should download and unzip Pivot4J plugin into: ./pentaho-solutions/system folder in the BIserver, follow:
this link
or if this still does not show the pivot4j option you can install it through the Marketplace, there you can install/unistall pluggins, including pivot4j.
After you install or update stop and start the server and it will work.
When you unzip the file pivot4j-pentaho-0.9-plugin.zip it will create a folder called pivot4j. Don't move the contents in the folder move the entire folder to:
C:\program files\pentaho\biserver-ce\pentaho-solutions\system\pivot4j\
This is will work if you are not seeing the plugin in the drop down in Pentaho.
Granted everything else was done correctly.

Test with older versions of Firefox

I had a situation where a user saw an error on her browser which is Firefox. It might be an older version. Is there a way to test multiple versions of Firefox without downloading a bunch of them?
You can use Utili Mozilla Firefox collection if you want to test your site in different versions of Firefox. It's really convenient - a lot of versions in one pack.
http://utilu.com/UtiluMFC/
(I'm not associated with this company)
cheers
I have a folder /browsers with custom versions of browsers, e.g. firefox, chrome, opera.
Then launch the different version when you need to test a specific version rather than launching the default one from your Applications.
*e.g. just rename the installed .app.
Chromium.app rename to e.g. Chromium_19.app need to disable auto-updates
Firefox.app rename to Firefox_38.app
firefox releases
Chrome releases
Opera releases
Multi Safari
Yes you can do this. I have gone through multiple links to find its solution. For example you want to install firefox 4.0 but want to keep 3.6 as well then you need to install Firefox 4.0 using the Custom Installation option, in a uniquely named folder — like /Program Files/Firefox 4.0/ — don't let 4.0 run after the installation procedure is complete.
Create a new profile exclusively for the 4.0 beta version and create a desktop shortcut with -P "profile" appended to the target to launch that profile.
Helpful links will be link1 and link2.
During the search I have also found one software utilu that may be useful, but clearly speaking I have not tried that yet, will try later.
there sites like these http://browsershots.org/. They let you test browsers without downloading.
If you're on OSX using Homebrew, you can install via brew cask:
brew tap goldcaddy77/firefox
brew cask install firefox-46
More info can be found at the git repo homebrew-firefox

Red5 demos don't work

I just installed red5 on my server, and the install seems to work fine. As you can see here: http://onelifemedia.com:5080
I got this far by using this walkthrough: http://www.webhostingtalk.com/showthread.php?t=1046590
The /demos page gives me a 404 error. So I logged onto the server, and checked to see if the "demo" directory was already there. It was not.
The applications that I installed were a directory up from the root directory. I'm not sure if this is right or not.
Either way, my end goal is to actually get something working besides the main page. If I can get the demos to work, then hopefully I should be well on my way.
I guess my questions can be broken down like this:
Does anyone know how to get the demos working?
Should I forget about the demos, and try to start writing my own code?
If I should write my own code, how should I go about installing it? Since the installer is not properly installing the demos.
Thanks
The tutorial is good but you dont need the admin app. Use the installer link in the tutorial and install the demo you want to use. The content of the "demos" directory is only the swf files used to access the server demos which you use the installer app to install. For instance , select "oflaDemo" and then from the main page navigate to demos/oflaDemo et voila.
I know I'm biased being a core developer, but we've attempted to make the server as ez as possible to use.
I could install demos from the latest svn trunk, Checkout the source, use ant&ivy to build and run the server and you can install two sample apps(oflaDemo and SOSample).
You may need to use ivy commands resolve some of the common issues during installations.
E:\dev\red5\java\server\trunk>ant ivyclear dist
()Red5 user mailing list may help you, because this is not exactly problem with Red5 source.
()http://stackoverflow.com/questions/11156222/red5-demos-not-working/11935532#11935532
I could resolve the issue based on the information in Red5 users mailing list and comments by Mr.Mondain in one of the posts in Stackoverflow

Installing web developer plugin for Firefox 3.6 from corp. network

I'm trying to install the web developer plugin, and it's failing with a message that "Web Developer 1.1.8 could not be installed because it is not compatible with Firefox 3.6.13".
I don't believe that it's actually incompatible; rather I think the problem is because the installation fails during a validation check, probably because the corp. network is messing with the connections. The message I get is that:
services.addons.mozilla.org uses an invalid security certificate
and when I view the certificate, it's issued by the networking group, not mozilla.
Is there a way to by-pass the version check so I can install it?
The most likely explanation is that the XPI you were trying to install had em:maxVersion in its install.rdf smaller than the Firefox version, so Firefox was checking with addons.mozilla.org to see if the version you were trying to install was marked as compatible (addons.mozilla.org allows to bump the maxVersion, but doesn't update the XPI it serves to the users).
If for any reason that update check failed, Firefox wouldn't let you install the extension.
The solution in that case (extension version actually compatible with Firefox, but has stale information in its install.rdf) would be to edit the XPI to bump maxVersion manually before attempting to install the XPI.
That's weird that it's giving you the "not compatible with Firefox version x" message since, as you say, that doesn't seem to be the actual problem. See if this works: Right-click on the installer link and select "Save Link As..." and save the file on your hard drive. It will be called something like webdeveloper.xpi. Then just drag and drop the file onto Firefox.

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