Diễn đàn hỗ trợ Firefox

After having upgraded my W11 system to 25H2, I cannot install any extension. Installation terminates with "... something may be broken". I'm using FF 144.0,2. FF is used in more than one account alternatively.

On a second system, with less security measures, I have no problems.

hallo, I use "Qwart" Browser as Internetbrowser in Firefox extension. But I can't see an Qwart-icon on menue-strip. I receive a message "Quart-Search engine can't read and change data from this Webside" Extention best regards klosterberger

I am unable to access about:addons on firefox, and I don't what I should do to unblock. I blocked about:addons myself, but I don't remember exactly how I did that, and now I am locked out. Could you be able to help me out with this?

What version of Firefox actually allows you to add extensions? I'm running the most current version of Tumbleweed that ships with 144.0. Attempts to add extensions just sit there doing nothing until I close the tab. This sort of worked some time ago (I forget the version) but the inability of Firefox to allow add-ons/extensions is getting to be a joke. There are other browsers out there, ya know.

I have no idea how 100k people can review an extension labeled ICLOUD PW EXTENSION and you guys can't either remove it for the scam it is or show it has your approval as an extension up to FireFox security standards. 2.7 stars 100k reviews looks like a scam. Simply my feedback. Can't tell if I should trust so I'll never trust it until it's sufficient enough.

Hi again, your answer didnt help - below you see the message I get when trying to book a flight on sas.se

kind regards Jan Collborg

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I have a pacer account and it instructed me to download Firefox than go to tools to add adobe so I can submit documents to the court online. Im getting confused can anyone help walk me through this process

When I try to open the Capital One Eno extension in Firefox, I get the error report: File not found

Firefox can’t find the file at moz-extension://7320386b-4a09-4c92-82b4-0c35a233d29a/consent/index.html. It works fine when using the Chrome browser.

I’ve developed a Firefox extension similar to the RankingsFactor SEO Chrome Extension, which analyzes on-page SEO elements such as meta tags, headings, links, and canonical tags.

The core functionality works fine in Chrome, but when I ported it to Firefox using the WebExtensions API, I’m facing permission issues while trying to access or read the page content (DOM).

Here’s what I’m trying to do:

Inject a content script to read <meta> tags, headings, and links.

Display this extracted data inside my extension popup.

However, in Firefox, the script doesn’t seem to have proper access to the page DOM — even though I’ve included "permissions": ["activeTab", "tabs", "<all_urls>"] in manifest.json.

I’d like to know:

Are there any additional permissions required in Firefox to read page content?

Does Firefox handle activeTab or content_scripts differently than Chrome?

Is there a specific event or user action needed to grant temporary permissions?

Any help, code examples, or guidance on fixing these permission restrictions would be appreciated.

hi, does anyone know where could i find installed extension to work, because where ever i find FE(search by image) it's look like extension setting environment. or any info abt how can i add option to contextual menu sub menu....! thank you in advanced 🙏🙏🙏🙏