Cannot install add-on/extension

Similar Questions

• Firefox prevented me from installing add on extensions

  I am trying to install facebook purity add on / extension and on chrome, had no problem, works fine, but firefox keeps giving me the dreaded pop up that says "" Firefox prevented this site to install add on ' I went into permissions and listed at this site on an exceptional basis, there is no box that opens and says / asks me to "allow" it " , I went to about: config and the signature thingy is already set to false, according to the questions of the previous articles, and therefore none of these possible fixed work, how the hell can I get firefox to allow me to choose for myself and my own reasons, add it on and not stop? Please tell me what to use, I toldyou that I already tried, now I just need help, as happens all the time. OMG when I hit the button at the bottom of page to automatically add troubleshooting information, the same pop up came and would not allow it, here on ffmozilla!

  Normally, you see the question "save the link as" from the context menu of the Add button.
  There is also a section of versions below with a link to the xpi file.

• Cannot install add-ons for Firefox for Android

  I have some add-ons installed. However, lately, when I try to install an add-on for Firefox for Android, I get an error message indicating that I have to install Firefox first.

  Only, I use Firefox on my Samsung Galaxy S5 and would like to install more modules. Is there a setting that might make it appear the error message?

  Any suggestions would be greatly appreciated.

  Thank you
  Michael

  Looks like you may have tried to install desktop Firefox extensions in Firefox Android.

  allplayer

  You can change the section at the top where it says other Applications.

• Cannot install add-ons in Firefox 4 "[Add on] could not be installed because Firefox failed to modify the necessary.".

  I tried to install add-ons for Firefox 4, but were unsuccessful.

  If I try to install inside the about: addons, the add-on will download, but then the installation bar will not change.
  If I try to install from addons.mozilla.org, the add-on download but then I get a message in the info box on site (at the side of the address bar) which reads, "[module] could not be installed because Firefox failed to modify the necessary."

  If I try to install any other modules after that, I get an error.

  I'm under Ubuntu 10.10 on a Toshiba Satellite U400.

  On config variables xpi: enabled = true.

  I'm having this problem. I am also under Ubuntu 10.10 and Firefox 4.0 (Canonical version 1.0) 32-bit.
  When I try to install the Greasemonkey addon (and other addons), it downloads, but the installation progress bar remains at 0%. I can not also cancel installation. If I try, I get the error:

  Error: Cannot cancel install of https://addons.mozilla.org/firefox/downloads/latest/748/addon-748-latest.xpi?src=addondetail of that State (5)
  Source file: resource://gre/modules/XPIProvider.jsm
  Line: 5168

  When you try to install, I get this error in the error console:

  Error: this.installLocation is not defined
  Source file: resource://gre/modules/XPIProvider.jsm
  Line: 5751

  I read on the troubleshooting page of Firefox that xpinstall.enabled should be set to true in the configuration: about, but there is not in my list of config, so I tried to add it, but it made no difference.

• Cannot install add-ons

  I can't install add-ons. When I click on 'Install now' I get a message that reads "Stumbleupon could not be installed because Firefox is unable to modify the file necessary.".

  I can not install additional modules.

  12 Firefox is not the reset button.

  You will need to upgrade to Firefox 13 if you want to use that button instead of the Terminal method to create a new profile to reset.

• Cannot install the behavior extension for server and database for Dreamweaver CC 2014

  Hello

  I try to install the server behavior & extension of the database in my CC of Dreamweaver 2014 of the trial.  I've added it to https://creative.adobe.com/addons/patches/2176#.VGJ7TvnF-DA and it shows I have, but it has not yet appear in Dreamweaver.  I followed the steps outlined in the troubleshooting list:

  Internet works

  The application is compatible with the addon

  The application of CC desktop is installed and running

  Synchronization of files is enabled

  After that, I tried to install it through the Adobe Extension Manager.  As soon as I loaded up the Manager has crashed.  Whenever I open it crashes immediately.  Here is the error report:

  Signature of the problem:

  Problem event name: APPCRASH

  Name of the application: Adobe Extension Manager CC.exe

  Application version: 7.3.2.0

  Application timestamp: 5423f0ba

  Fault Module name: MSVCR100.dll

  Fault Module Version: 10.0.40219.325

  Timestamp of Module error: 4df2be1e

  Exception code: 40000015

  Exception offset: 0008d6fd

  OS version: 6.3.9600.2.0.0.256.4

  Locale ID: 1033

  Additional information 1: 9b2b

  More information 2: 9b2bdea32afaae877182c5486bcda189

  3 more information: f7dd

  Additional information 4: f7dd51dc76fb06d86332126480a431b7

  I then removed my addons, then deleted and reinstalled the extensions Manager.  As soon as I tried to open the Manager it still crashes.

  Any ideas?

  Running Windows 8.1

  Thank you

  -James

  Try the following.

  1. Uninstall the current extension.
  2. Install the DMXZone extensions Manager
  3. Using the extension Manager DMXZone, install the connections/data server behaviors panel

• Cannot automatically add the extension

  PES 9 on Mac. I can't the value in "Preferences", "Always" add the extension. I always chose "add extension" then press OK, but he's still to add 'never'. Can anyone help?

  The consequence is that you will have to redo all the changes to the PSE interface, as if you shot things of the location of the Panel, for example. You will be not able to change anything, because the preferences file restores when you restart Publisher. Everything you do some of the parameters of PES is back to where they were when you started for the first time there.

• Cannot install add ons os 6

  Nice day.

  just bought the RN516 running OS6.4. everything looks OK so far. But while installing the module, I have noticed that it is never possible to install one of the Add-ons pre-registered through the want of the NAS page. I have always download and install manually. However, it has worked so far.

  I do not think that the download/install treated well the websi NAS is supposed to "does not work.

  Here, I have an idea or a genuine reason for it?

  Thanks for the suggestions or recommendations.

  JD

  Thanks for the suggestions.

  Network and DNS settings of course is the 1st thing to check and there is / was no issue. Incidentally OpenDNS (208.67.222.222/202) is just fine and preferred on Google's servers at this time.

  I opened a support case, and it seemed a file permission / access right issue. Factory reset & new configuration user solved the problem. Fortunately, I was just at the beginning of the installation.

  What a relief :-)

  Once again thanks for the help.

  Juan

• Cannot install add on

  I buy Smart Export layer and I can't install it. I asked for a refund of twice and nobody has gotten back for me. I don't know how to access the media, I get only directed to the forums where I probably won't get a response.

  Does anyone else have this problem? I feel outside of photoshop, adobe is on its way with its prices exorbitant, the lack of support and new competitors.

  

  

  Please install via the CC Desktop App and not the extensions Manager, which is not supported for CC 2015 Adobe Apps.

• the pages won't load does not correctly and cannot install add ons

  After installing Firefox on Windows 7, mozilla site and the addons page 29 does not load correctly. Some such problem indicated in https://support.mozilla.org/en-US/questions/992362 and I tried all the steps but still does not work.

  OK Jefferson: did so. For those interested, my response on the other thread was:

  «After stared grumpily the computer screen for a while after you posted my message, I suddenly realized that, although it checked twice, the date was in fact erroneous.» For some reason, the date to yesterday - which is obviously where my mind was still, because when I saw the date I thought Yes, "it is the right date." After that I put today's date, the problem disappeared. Curious that this one small issue should cause such a problem "profound." Anyway, all sorted. »

• I do not install add-ons

  Please help me!

  I buy the add-in, but I can not install them.

  Files do not appear on the Isloud shop

  With Extension manager CC cannot install add-ons on Lightroom

  Help, please

  Dear Alexander

  Please tell us the name of the product you are trying to install Lightroom. Most Lightroom products install in the folder downloads to your computer. Please search for a ZIP file in the folder downloads to your computer.

  Have you checked the section "where to Find It' page of the product on the site of Adobe modules? This should give full instructions on installing your new product in Lightroom. If it's not, and you still have problems, please let us know.

  Kind regards

  Krystal

  -Adobe Exchange / modules team

• Cannot install plugins

  Plugins are downloaded many times, but not being installed

  If sure you use an administrator in Windows 7 account, also review anty security related software and consider temporarily turning off or change its settings to not block updates. For more ideas that could have an impact, see also:

  • Impossible to install add-ons (extensions and themes)
  • and How to resolve the failure of the update of Firefox update error message

  What are the plugins or add-ons that you trying to install?

  It is useful if you update to the latest version of Firefox 3.6.

  He's also Firefox 4 available now, but not all other software extensions are compatible with firefox 4 again.

• I cannot install extensions, they appear with "will be installed after you restart Firefox" even after that I restarted.

  Hello

  I cannot install extensions, they appear with "will be installed after you restart Firefox" even after that I restarted.

  The 'Intermediary' folder is present and rest after a restart, but the extensions do not get installed. They show in the extensions page with the message "will be installed after you restart Firefox" and remain like that, no matter how many times I restart.

  Any idea?

  Under Firefox 24.0 Windows 8.1

  Thank you very much
  BD

  P.S. Just tried to install the add-on "convenience store" before asking the question and I got an error saying that it cannot install because it cannot change the necessary file. (I did manually instead)

  I tried to delete the files extensions.* nothing works. However, I deleted the addons.sqlite file and restarted my computer (computer not only Firefox) and that seemed to do the trick. Problem solved.

  Thank you for your help, it is appreciated.

• Since the installation of Firefox 4 Beta 5, the Add-ons Manager is empty. My modules, however, seem to be installed and working, but I cannot, install or uninstall or configure them.

  My modules, however, seem to be installed and working, but I cannot, install or uninstall or configure them.

  Try to force Firefox to rebuild the list of installed modules.

  1. Open the profile folder for more details on how to access see article profiles - where Firefox stores your bookmarks, passwords and other user data .
  2. Closing Firefox, then delete extensions.sqlite (you can also delete extensions.cache, extensions.ini and extensions.rdf if they exist)

  When you restart Firefox must be rebuilt on the list of installed modules.

  If this does not work, you can have an add-on that is causing the problem, try the options in article Troubleshooting extensions, themes and problems of hardware acceleration to resolve common Firefox problems .

  If you type Subject: addons in the address bar that brings to the top of the list of modules? I saw a list of empty modules if Mr Tech Toolkit is installed, accessing the Manager add-on by typing about: addons in the address bar is a workaround with this add-on installed. The author of this add-on is working on an update.

• I installed "downloadhelper". It shows in the list of add-ons/extensions, but it does not appear in the toolbar

  I installed "downloadhelper". It shows in the list of add-ons/extensions, but it does not appear in the toolbar. I reinstalled foxfire, various foxfire files updated, tried other modules, but none of this helps.

  Have you tried to click on "Restore default settings" in the palette to customize?

  Have you checked the settings in the VDH extension?