Firefox Community Forum

Hi everyone,

I recently built a small Firefox extension for my website https://calcolo-stpendionetto.it https://calcolo-stpendionetto.it , which helps users calculate their net salary in Italy using updated IRPEF and INPS rates.

However, when I try to upload the extension to addons.mozilla.org addons.mozilla.org (AMO), I keep getting this error message: Signing is not possible due to an error with the manifest file

{

 "manifest_version": 2,
 "name": "Calcolo Stipendio Netto",
 "version": "1.0",
 "description": "Calculate your Italian net salary (IRPEF, INPS, regional tax) quickly.",
 "icons": {
   "48": "icons/icon48.png",
   "128": "icons/icon128.png"
 },
 "browser_action": {
   "default_popup": "popup.html"
 },
 "permissions": ["activeTab"]

} I also tried switching to manifest_version 3, but then Firefox gave a warning that some properties like browser_action are deprecated or not recognized.

Has anyone experienced the same issue when uploading finance or calculator-related extensions? Is there a new manifest format or signing rule I might be missing for Firefox extensions?

Any help or examples from working extensions would be greatly appreciated. Marien Klin

I had to actually sign up fort a Mozilla account,the multiple hoops I had to jump through were ridicules, in order to ask a question of Firefox. I do not want my address bar to be my search engine. How do I disable the search engine in my address bar? And now I have to wait for an answer!!!!!!!! I used to love and trust Firefox. Not anymore.

Recently, Firefox updated and ask me to setup a profile, which I have not yet done since importing my data from google chrome in 2025. After skipping the setup, Firefox then deleted all my data and it has since been irecoverable. I have already checked the box last update that specifically said to not ask me again for setting up my profile. After the recent update, the question popped up again and now I cannot recover my original profile, all my browsing history, all my browser-saved data, and all my cookies and logins

why do I get this error page when I click on an e mail from Homedepo.com and it I type homedepot.com I get in with no problems. I tried to wipe out the cookies and I wiped out everything that made life easier and made even the easy things like signing in (or really I never had to re sign into my e mail) to my hotmail or gmail? I don't have this problem on my Linux laptop?

My selected topic "settings" actually does not really describe my tabs problem. Even though I followed instructions for entering "about:unloads" the expected webpage did not appear. All I got was the same instructions and not a page that included the table and its unload button that was said to be above it. When I select the New Page tab and right click and then select three tabs, the right-click menu only shows the option to "close three tabs." There is not an option to unload three tabs. Yikes! And when I select one tab and click on the one option to unload one tab, the selected tab does not unload. The tab does not unload. The tab does not unload. It is still there. (???) This is very frustrating! I can only close tabs. So far I can only temporarily close them. Could the problem be that I am still using Windows 10? Please advise. Thanks for reading about my problem of not being able to unload my unwanted tabs.

I've lost access to my [edited] @hotmail.com email address that is associated with this account, and I'd like to change my email address now before I'm locked it forever. This is the last computer that I have that is still logged in! It seems that to add another email address I need verification from my first email address, which I can not get. Please help! I don't know if your response to this help question will go to my Firefox account or my email, but if it goes to my lava950 email I won't receive it. If you could please also send it to [edited email from public community support forum], I'd really appreciate that. Thank you!

Hello,

I have my browser startup settings set to 'open previous windows and tabs' However, every time I start up firefox, it is on the default new window screen rather than my previous tabs. This feels frustrating as I have to reopen the tabs every time.

Would it be possible to fix this?

Thank you.

My ChatGPT page is malfunctioning.

Right now, the webpage is not showing any past chats nor is anything functioning. Earlier, I could see the past chats, but when I opened any of them I could not see the ChatGPT responses. I have disabled all extensions, have cleared the cache, and restarted Firefox several times but the problem persists.

The problem is specific to using Firefox, as both the ChatGPT phone app and the Chrome browser ChatGPT page work.

Does anyone have a solution to this problem?

I am unable to follow instructions for activating Backup in Firefox. I don't even have a Manage Backup button. What I have in its place is:

Backup

Restore your data Use a Firefox backup file from another device to restore your data.

Choose backup file...

Здравствуйте, у меня звуки из браузера перестали воспроизводиться сначала на 1 мониторе(со 2го воспроизводились), а затем и со 2го. Остальные приложения выводят звук исправно. Что делать? Спасибо