Have you done this? Customize Firefox controls, buttons and toolbars {web link}

Type about:customizing<enter> in the address bar.

Note: about:customizing is no longer present in Firefox 47+ releases.

• Press Alt or F10 to bring up the toolbar.
  Then View > Toolbars > Customize.
• Right-click on a blank spot in the toolbar and
  select Customize.

In the new window, look for the icon. When you find it, hold down the left button on it, and move it to where you want it to be. You can move any of the icons you want from here, but; some icons are locked in place.

There is also a Restore Defaults button at the bottom middle.

Thx for the reply Fred. The thing is though that when I get to the customize window there are no icons present for the installed add-ons. The only thing there is a general add-on icon. I have attached that to the toolbar. When I click on that icon it shows me a list of installed extensions, but I cannot attach the seperate extensions to the toolbar. And from the list itself I cannot start any of the extensions. This is particularly problematic with the Enpass extension. If I can't start that I can't autofill my username/password for any of my logins that are stored within Enpass. Other extensions such as adblock just work by default, but this one doesn't. So unfortunately I still seem to be stuck. Any other ideas?

First; Type about:support in the address bar and press Enter. Under the main banner, press the button; Copy Text To Clipboard.. Now in the Reply Box on the forum page, do a right-click in the box and select Paste.

This will show us your system details. No Personal Information Is Collected.

If you can't fit everything in one post, do not worry. It's the upper part we need to check out.

Second; It’s possible that there is a problem with the file(s) that store the extensions registry.

Type about:support in the address bar and press enter.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder

Linux: Under the page logo on the left side, you will see Application Basics. Under this find Profile Directory. To its right press the button Open Directory.

Delete all extensions* files and compatibility.ini in the Firefox profile folder to reset the extensions registry.

• https://support.mozilla.org/kb/Profiles

New files will be created when required.

After, restart Firefox.

See "Corrupt extension files":

• http://kb.mozillazine.org/Unable_to_install_themes_or_extensions

• https://support.mozilla.org/kb/Unable+to+install+add-ons

+++++++++++++++++++++++++++ You will have to approve the updating one last time.

Thx once again Fred. The problem has been fixed!

I have followed your steps to completely delete every trace of the extensions. After that I reset the browser to the default settings to make sure none of my tweaking could cause any residual problems. I then installed the desired add-ons again and low and behold they appeared where I wanted (and expected) them to be.

Thx for the quick and adequate assistance!

Glad to help. Safe Surfing.

Application Basics

Name: Firefox Version: 73.0.1 Build ID: 20200217142647 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0 OS: Windows_NT 10.0 Launcher Process: Enabled Multiprocess Windows: 1/1 Enabled by default Remote Processes: 6 Enterprise Policies: Inactive Google Location Service Key: Found Google Safebrowsing Key: Found Mozilla Location Service Key: Found Safe Mode: false

Crash Reports for the Last 3 Days

Firefox Features

Name: DoH Roll-Out Version: 1.3.0 ID: doh-rollout@mozilla.org

Name: Firefox Screenshots Version: 39.0.0 ID: screenshots@mozilla.org

Name: Form Autofill Version: 1.0 ID: formautofill@mozilla.org

Name: Web Compat Version: 7.0.0 ID: webcompat@mozilla.org

Name: WebCompat Reporter Version: 1.1.0 ID: webcompat-reporter@mozilla.org

Remote Processes

Type: Web Content Count: 4 / 8

Type: Extension Count: 1

Type: GPU Count: 1

Extensions

Name: Adblock Plus - free ad blocker Version: 3.8 Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Amazon.com Version: 1.1 Enabled: true ID: amazondotcom@search.mozilla.org

Name: Bing Version: 1.1 Enabled: true ID: bing@search.mozilla.org

Name: DuckDuckGo Version: 1.0 Enabled: true ID: ddg@search.mozilla.org

Name: DuckDuckGo Privacy Essentials Version: 2019.12.12 Enabled: true ID: jid1-ZAdIEUB7XOzOJw@jetpack

Name: eBay Version: 1.0 Enabled: true ID: ebay@search.mozilla.org

Name: Google Version: 1.0 Enabled: true ID: google@search.mozilla.org

Name: Privacy Badger Version: 2020.2.19 Enabled: true ID: jid1-MnnxcxisBPnSXQ@jetpack

Name: Twitter Version: 1.0 Enabled: true ID: twitter@search.mozilla.org

Name: Wikipedia (en) Version: 1.0 Enabled: true ID: wikipedia@search.mozilla.org

Security Software

Type: Windows Defender Antivirus

Type:

Type: Windows Firewall

Graphics

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