Firefox Community Forum

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’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,

I am in the UK I want to access channel t catch-up service and get a request to disable the ad-blocker.

I have no idea what the icon looks like or how else to mam=nage it. I didn't know that I had an ad-blocker.

See screen dump of the FAQ

Help most welcome

Thanks

Bryn

This topic was already dealt with at https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://support.mozilla.org/si/questions/1491724&ved=2ahUKEwjh3JWX1KSRAxWDyMkDHYXfDf0QFnoECBsQAQ&usg=AOvVaw2Zp2I2jgPnZ9gkSf5UgMGS. The solution given there was to change extensions.screenshots.disabled in about:config.

Unfortunately, my Mozilla Firefox (ver. 144.0 (64-bit)) doesn't have extensions.screenshots.disabled. So what now?

All my addd ons (Ad Blocker, DuckDuckgo privacy essentials, Sound fixer, To google translate) are all turned on but they are all disabled. Maybe since this last update?

I am on a Windows 11 machine. Lastpass extension for the Firefox browser does not maintain my vault data. I have to refresh each time I go into the browser. This just started a couple of days ago. Perhaps after installing a new Tmobile gateway? Ideas on how to address/fix?

i go to download an extension,everything is fine until i click the "download extension" button and then all of the sudden it takes me to this other page that tells me to download firefox but i already have it downloaded

Hallo, seit heute funktioniert die Passeky Eingabe durch die Bitwarden Erweiterung nicht mehr. Auto Ausfüllen von Passwörtern geht. Firefox und Bitwarden wurde komplett deinsatlliert und neu aufgesetzt. Ergebnis ist leider immer das selbe. Passworteingabe durch Firefox wurde deaktiviert. Vielen Dank

Hi,

I'm using Containers to switch between four different workloads, three companies and personal things.

However, if I have a tab opened with a host that is common to two or more containers, i.e. Google Drive, Firefox will continuously duplicate the tab and ask if I'd like to "Open this site in your assigned Container?"

The tab in the attached image is already opened with the document, but despite that Firefox will duplicate the tab, asking the above question. If I pass some time without visiting the group where the tab is, I have to sometimes close tenths of such tabs.

Any help is appreciated, Containers are amazing but it's really bothersome to have to keep closing tabs all the time.

Andre