How to uninstall the FireFox simulator from browser - firefox

I would like to know how to uninstall the FireFox simulator from the Mozilla browser.
Because I have this message error on top of the window:
ReferenceError: debuggerSocketConnect is not defined
P.S: The simulator starts perfectly!

Enter about:addons in the URL bar.
Look for the Firefox OS versions you want to get rid of and click the delete button.

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Safari macOS content blocker only works once

Strange problem. I'm building a safari content blocker. When I run the host app the content block extension appears in the safari extensions preference window. Everything works fine. Except, it only works the first time I run it. Subsequent times nothing happens, nothing appears in the preference window. The extension is missing. I have no idea why and my search didn't yield a solution.
I tried with Safari 12 and 13 beta. macOS 10.14.5
Tried building a new content blocker, same result.
check to make sure that Allowed Unsigned Extensions is selected under the Develop menu.
If so proceed with the below.....
Close Safari
In XCODE you need to Clean Build folder. XCODEMenuBar>Product>{click stop if clickable}>Clean Build Folder.
Now rebuild.
Open Safari>Select Allow Unsigned Extensions from develop menu.
Safari>Preferences>Extensions> now your extension should show up.

Web Inspector on Mac is empty when connected to iPad

I am struggling to use the Web Inspector on my Mac to inspect the webpage on my iPad. This is what I have tried so far:
I have turned on web inspector on my iPad.
I have checked that cookies are enabled on both the Mac and the iPad.
I have connected my iPad up to my Mac with a cable.
On the Mac, under the develop menu I can see my iPad - when I hover
the mouse over the visible tab, the webpage on my iPad highlights with blue. Clicking that brings up the Web Inspector on my Mac.
When I hit refresh in the Web Inspector on my Mac, the page on my
iPad refreshes.
There is obviously a connection between my iPad and my Mac.
However, the rest of the Web Inspector on my Mac seems empty.
The Elements tab is empty. The Network tab shows an empty list (headers only), even after a refresh. The Resources tab is empty. The Timelines tab is empty. The Debugger tab is empty and shows no sources. The Storage tab is empty. And the Console tab shows nothing, despite numerous calls to console.log from my webpage on the iPad.
I have also tried opening a private browsing window on my Mac and tried connecting to my iPad via the Web Inspector from there. Still no joy.
I am using Safari version 11.1.1 on my Mac. I am unsure how to check the version number of Safari on my iPad. I am an experienced Windows user but have limited experience with Macs. Please let me know if there is any further information that I could provide.
Can anyone help me in getting the Web Inspector to work properly between my Mac and my iPad? Many thanks.

How to get Firefox to open a Mac AppStore link directly into the App Store app

This is the link I'm trying to go to from my website's "Download on the Mac AppStore" button:
http://appstore.com/mac/gdollc/zing
This is the syntax Apple recommends at https://developer.apple.com/library/archive/qa/qa1633/_index.html
When I try this link in Safari or Chrome, they handle it well, i.e. Safari will open the App Store app with the main page open at my app's page, and Chrome will do the same after prompting me if I want to open the App Store app.
But in Firefox, I get stuck on a page that shows "Connecting to the Mac App Store"
and a message saying "To use the Mac App Store, you need Mac OS 10.6.6 or greater. For more information, please click here." which isn't appropriate since I run Sierra.
That page is actually hosted by Apple as its URL is https://search.itunes.apple.com/WebObjects/MZContentLink.woa/wa/link?mt=11&path=mac%2fzing
Then a window appears with title "Launch application" with "This link needs to be opened with an application", and it offers me either iTunes (which is inappropriate for a macOS app in the Mac AppStore) or "Choose other Application".
Even if I click on this last option, the App Store app is grayed out, presumably because it thinks it can't handle the link.
Is there something I'm missing to get Firefox to behave like Safari & Chrome?
I disabled all NoScript/AdBlock software on Firefox for these tests. I'm running Firefox 55.0.3 (64-bit).
I've also tried this on another computer with the same behavior.

Chrome headless always shows its dock icon on osx

I'm using Chrome 59.0.3071.115 and Chromium 61.0.3159.0 (snapshot build) on OSX in headless mode, launching them from a terminal with these flags:
chrome --headless --disable-gpu
Everything works as expected, but a Chrome/Chromium dock icon is always displayed during their execution.
Is there a way to execute them in headless mode without having this icon always being displayed?
It looks like this is a bug.
https://bugs.chromium.org/p/chromium/issues/detail?id=750505
I hope the Chromium developers will fix this soon. You can star the issue in the meantime.

xcode webview file open dialog not showing

I created an osx application in xcode that shows a webpage using a webview. But for some reason it is not showing the file open dialog in my webpages.
Safari and chrome seem to be fine so the page seems to be ok.
The only related setting for the webview i can find in xcode is "enable popups" but that's enabled. Does anyone know why this might be happening?
Thanx
Wouter

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