All Questions
Tagged with firefox-addon-webextensions firefox-developer-tools
19 questions
1
vote
0
answers
29
views
Cannot load two temporary extensions at the same time in Firefox?
I load a temporary extension(with a content script) in Firefox by "about:debugging#/runtime/this-firefox" and this extension works fine. Then I load another temporary extension(with a ...
- 979
1
vote
0
answers
102
views
Creating a tab from inside a devtools extension returns successfully with a tab id of -1
I'm working on a devtools extension. Inside the JS code of a devtools panel I'm trying to create a tab; the tabs.create function returns successfully but the new tab id is -1 and, of course, no new ...
- 420
0
votes
0
answers
75
views
load the extension as Firefox starts
I am trying to load the extension in firefox which I have build in windows. Here I have downloaded the firefox nightly source code and made my own extension. Now, I want to load the extension as soon ...
- 11
1
vote
1
answer
310
views
Content Security Policy blocking Google API for addon
I am writing an addon for Firefox and have problem with Content Security Policy. It needs accessibility to Google API when I press button on it, so I have added following script tag to popup.html
<...
- 49
0
votes
1
answer
548
views
JavaScript for Firefox Add-on/Extension: "failed to execute script: Error: Permission denied to access property "document" on cross-origin object"
I am looking forward to receive some help on this little but tedious problem of mine that seems I am not currently able to solve since a few weeks so far.
I am trying to develop a very easy/simple ...
- 11
1
vote
0
answers
534
views
Firefox add-on background script stopped in new Firefox version
My Firefox add-on background script stopped working in the latest version of Firefox. I've been using this add-on without changes for over a year now and it has been working perfectly so something in ...
- 11
1
vote
0
answers
92
views
Performance tab "Not supported for current toolbox target" when debugging WebExtensions
What I'm trying to do: debug some performance issues of a WebExtension.
What I'm doing:
Go to about:debugging.
Go to This Firefox.
Choose any extension and press Inspect.
At this point, I expected ...
- 36.1k
0
votes
0
answers
342
views
Manifest.js not adding css file [Firefox Extension]
I am writing a custom Firefox extension and even though my manifest.json has the appropriate tag for including a CSS file, it is not being rendered.
If I inspect the web page, the css file isn't in ...
0
votes
0
answers
15
views
Firefox Javascript code Works in console but not through the extension [duplicate]
I have a simple playback speed setter for any HTML tagged videos (YouTube).
I get this error when I click on the 2.25 button to try to set the video playback speed to 2.25: "Cannot set properties ...
- 27
1
vote
1
answer
162
views
how set badge text after loaded site on my extensions firefox
I am trying to create an extension so that I can display the number of hidden input tags (<input type="hidden">) as a badge text in Firefox (like the image ==> )
But I have two ...
3
votes
1
answer
687
views
View requests made by Firefox extension / add-on [duplicate]
How do I view requests and errors made by a Firefox extension? They don't show in the usual tab Inspector tool.
In Chrome, it's
chrome://extensions/ > Details > Inspect Views (background page)
...
- 29.5k
6
votes
0
answers
1k
views
Extend time duration for displaying "PR_CONNECT_RESET_ERROR" error in Mozilla Firefox?
When a site receives high traffic, the tab in Mozilla Firefox stops loading and displays this error message "PR_CONNECT_RESET_ERROR" as shown in screen shot.
What I want is, the tab should ...
- 1,092
2
votes
1
answer
2k
views
WebExtensions: browser.webRequest.onCompleted never fires
I'm using the Firefox WebExtensions API with the following background script
var log = console.log.bind(console)
log('hello world from browser extension')
// https://developer.mozilla.org/en-US/...
- 122k
2
votes
0
answers
204
views
React (add-on) Tab absent in Firefox -> webIDE -> developer tools
I have my react app in kaiOS based device. I have webide running the app on my device. I want to be able to debug the app and see the react states/props just like a normal react app running in chrome/...
- 304
7
votes
2
answers
3k
views
How to include a JavaScript source map file in a Firefox WebExtension?
When attempting to use a library with a source map from within a WebExtension, I encounter this error.
Source map error: TypeError: NetworkError when attempting to fetch resource.
Resource URL: moz-...
user2895783
18
votes
4
answers
6k
views
How to access add-on content script in Firefox console?
I have developed an add-on for Firefox and Chrome. It has content scripts. I want to access them in the browser tab's console (on Firefox the Web Console). For example, I want to enter a global ...
- 3,621
5
votes
2
answers
1k
views
chrome.proxy API for Firefox WebExtensions
Does Firefox WebExtensions support an API to change proxy preferences (like the chrome.proxy API)?
Does Mozilla have plans to add it?
- 183
32
votes
1
answer
16k
views
How do I see the console.log output of a background script in a Firefox WebExtension?
Does anyone know how to see the output from a console.log() call in a background script? I can see the output from the same in a content script. Here is a simple script that I am testing this with:
...
- 8,119
29
votes
3
answers
15k
views
How to open the correct devtools console to see output from an extension script?
I am trying to test sample code for web extension for browsers.
But, it doesn't work. I checked the console for Google Chrome and also for Firefox. It doesn't print anything. The following is my code:
...
- 628