Diễn đàn hỗ trợ Firefox

Hello!

I first installed Video Download Helper several weeks ago and it worked fine. However, since the update of 04 March, 2026, it no longer works with YouTube. (It does, however, still work with Instagram.) Having checked all of the settings (which I had/have not changed), I uninstalled it today and then re-installed it. This hasn't helped. With YouTube, the Downloader icon (pinned to toolbar) simply remains grey and does not show any videos when opened. I am using the latest, fully updated version of Firefox with Windows 10.

Can anyone help, please?

Many thanks,

Stuart.

I am 82 years of age and did not grow up with the Internet. I have a total of only 8 hours of training on a PC. I have no idea how my PC got into 'safe mode' and now all of my extensions are disabled. I do not know how to exit 'safe mode' to allow the extensions to be enabled again. I tried following the instructions as provided, but to no avail.

I have just had to replace my PC following a bit of a disaster with my old one. The new PC has Windows 11. As usual I downloaded Firefox as I always use this. Somewhere in the installation of Firefox I must have been asked about blocking ads, but I don't remember. Now all ads are blocked, which I don't mind, but some sites are asking me to disable my ad-blocker if I want to use their site. Mostly I don't but there is one I need to use, so I would like to add that site as an exception, but I cannot find any mention of any ad-blocker in settings. Where do I find this? and how do I add exceptions?

The only add-on that I have in Firefox is the 'Privacy Badger' which could be the problem I suppose, but I can't see the website listed in the ones Privacy Badger is blocking.

Any help would be appreciated

I have just downloaded NordPass Password Manager. I think I have added an extension for this in Firefox, but I can't tell if it has been successfully added.

I am using Windows 11 Home Version 25H2 OS Build 26200.8037 64 bit operating system

Hello

I want to add custom AI chatbot to Firefox. Here it is: https://bggpt.ai/ . Here is the models: https://models.bggpt.ai/ In which way this may be accomplish?

Best regards Atanas Petrov

I'm using Firefox v126. I'm searching through the add-ons trying to find a few that I like and most don't work with my older version of Firefox. So I click into the version history of the add-on and find an older version of the add-on that will work with the version of Firefox I am running. Except... I click it and I get:

"The add-on downloaded from this site could not be installed because it appears to be corrupt."

say what? ok maybe a fluke, so I click on through, older version, older version, still old version. All give me the same error. Okay, maybe its just the add-on, no, its literally any older version of any add-on.

No way all those versions of add-ons are "corrupt." I can download the .xpi, rename to .zip and view the contents. Anyone run into this particular problem before and if so, how did you fix it? I'm keen to keep v126 of Firefox and would like to use the add-ons that I like to work with it.

duplicate of /questions/1486143 thread

Dear Sir,

Firefox is not working with Rabby Wallet and Metamask extensions.

It does no pop-up the window to see the transaction and sign it. Firefox 134.0.1 (64-bit). Windows 10 Home.

On Metamask at least I can click on the pinned extension and see the window. However it´s not the expected behavior, because it should open the pop-up automatically. With Rabby wallet it is impossible to proceed, even clicking on the extension icon.

Please fix it asap.

The Firefox Translations add-on has been discontinued and no longer works. As a foreign language learner, I found it very useful to open the Firefox Translations popup, enter some text, and have that text translated locally. Is there an alternative that has the same functionality?

[Coupongogo: Automatic Coupons & Cashback](https://addons.mozilla.org/en-US/firefox/addon/coupongogo-automatic-coupons/) is a malicious extension programed with a command and control server located in China.

Despite [Firefox user reports](https://www.reddit.com/r/firefox/comments/1pl0u6m/malicious_addon_does_not_get_taken_down/), the extension remains available on the Mozilla addon store.

A [rastersec.com contributor explains](https://www.rastersec.com/blog/coupongogo-cryptostealer),

>\[Coupongogo\] operates as a remote-controlled time bomb, utilizing a dynamic configuration system to evade detection, hijack all search and browsing traffic, and wait for a server command to activate its dormant theft capabilities targeting major cryptocurrency exchanges.

Given the lack of success at securing the privacy and security of users by using the standard addon reporting tool, how can I escalate this matter to a responsible Mozilla party for triage?

Hello,

I have the below problem with Firefox 141.0!

Ad blocking on the website => https://satkurier.pl/ - how to disable it?

A message appears in Polish: Please disable ad blocking and refresh the page.

Thank you for help in advance,

Maciek

Can I change the directory where Firefox stores the add-on xpi files? Our company's IT dept is constantly deleting or corrupting them. Right now it's: C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\riqfpq8g.default-release\extensions If I could just add a folder and tell firefox where the files are, this might solve that problem. Any ideas?

As usual on forums, none of the subject choices exactly fit my situation/problem, so I apologize for any unintended misdirection.

How do I uninstall Privacy Badger. It's been disabled, but not uninstalled. Please be specific as to keystrokes, screens, boxes, location of item. Many instructions tend to overuse computer jargon or common industry synonyms used daily within their sphere, which a laymen cannot easily translate, and often raise more questions than they answer. Installed on my Firefox browser. Thank you in advance.

When tab session manager (TSM) saves multiple windows, each with dozens of tabs, into a single imaging session file, TSM also creates and displays a list of those saved sessions. TSM now does not open any of multiple saved windows when any one of the backup listings is selected.. At one time, it did. Instead, TSM opens a single window and its tabs, on request, but opens it into the current window, only, When a new window is msnually created into which to drop the tabs, TSM simply refuses the new window, and replaces verything with a new window for its own tab collection..