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Previously when you click the ADD ON button a list of extension icons appeared but not if you click ADD ON button a theme tab pops up Now I can not use the extension I want to use eg for video download I could click the downloader icon and the video would start downloading. Now as the list is gone how do you use the down load ext if the icons are not listed. It is now a useless browser as I could not use the extension Even a simple eraser history icon is not there so I had to go to settings to clear data Very inconvenient Before you click the eraser button and history is cleared by 1 click Please restore ADD ON list button to make the browser more convenient as b4. After the recent update all the features are not visible

I have no idea what has changed and I do not have the experience to attempt to figure it out. I have had Dashlane for years and it works like a charm. Now, it will not auto fill certain sites and with other there is some sort of conflict which causes the sites to sit and spin but it will not auto-fill like usual.

All I have done is clear the cashe several times and then it started. Its a brand new machine so not sure how that plays into it but it was all of a sudden out of no where.

Any help would be greatly appreciated.

Dear Thunderbird Team,

I am writing to report a critical issue with the Thunderbird Extension API where it returns stale, cached data instead of live folder contents for Gmail IMAP accounts.

Issue Description The browser.messages.list() and browser.messages.query() APIs are returning outdated message data from 2016-2021, completely ignoring the actual current contents of my Gmail IMAP inbox. While Thunderbird's UI displays current emails correctly, the extension API serves permanently cached old data.

Evidence of the Bug What Thunderbird UI Shows: Current inbox with emails from today and recent weeks

Real-time folder contents

Proper folder synchronization

What Extension API Returns: Only 100 messages total (artificial limit)

Messages exclusively from 2016-2021

No emails from 2022-2025 present

Completely ignores current folder contents

Technical Details: Profile: /Volumes/Data/Mail Files/Thunderbird/Profiles/aq8q4la7.default-release/

Account: Gmail IMAP (imap.googlemail.com)

Folder: account1://INBOX

API Used: browser.messages.list(folderId) and browser.messages.query()

Steps to Reproduce Set up Gmail IMAP account in Thunderbird

Write extension using browser.messages.list() API

Compare API results with actual folder contents

Observe API returns stale cached data from years ago

Debugging Attempted We have tried:

Deleting all .msf index files

Clearing folderCache.json and global-messages-db.sqlite

Removing cache folders (cache/, cache2/, startupCache/)

Rebuilding folder indexes

Using different API methods (messages.query vs messages.list)

None of these resolved the issue - the API continues to return the same stale dataset.

Impact This completely breaks any extension that needs to access current folder contents, such as email tracking, automation, or filtering extensions.

Request Please investigate why the Extension API serves different (and outdated) data compared to Thunderbird's main UI, and fix the API to return actual live folder contents.

Thank you for your attention to this critical issue.

Best regards, Hasan

Hello, I wanted to create a script that doesn't allow me to disable a certain extension. For that I thought to locate the file in which the states of extensions are put. I searched online, and the answer appears to be that such file is available in extensions folder in my profile. However, I am unable to find extensions folder under my profile.

I would appreciate the help.

I've used Thunderbird with the Owl add-on for Exchange/Outlook accounts for several years. Recently I've found when I open Thunderbird on my laptop, a tab opens for each account, apparently showing the Outlook web page for each account. This is great, but on the same version of Thunderbird (140.3.1esr) on my desktop, that doesn't happen. I can't see how to open these tabs there, or even how to reopen one of these tabs on my laptop, except from Go->Recently Closed Tabs. Am I missing something? What controls this behaviour?

I've repeatedly been unable to send a DM on a particular fb page ~ fb says it 'might' have something to do with my ad blocker! How do I disable just for that communication? (don't want to disable AB for anything else, I pick & choose that action. TIA

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

Why there is no way for me to review or rate add-ons for the Firefox? Many years I am using Firefox and sometimes I just cant understand what a strange bugs I am facing.

So I want to contact Aliaksandr (creator of this extension 600% Sound Volume/link https://addons.mozilla.org/en-US/firefox/addon/600-sound-volume/) since there's a bug where I can't watch internet archive videos with it enabled. Is there a way for me to contact them?

I PAID for "dark reader" I got the activation key but I cannot activate it because the instructions says go to "MORE" and there is NO "MORE"! I hunted all over the settings & extension & themes, but I cannot find anyplace to activate this extension. Did I just waste my money? I have poor vision, I NEED a dark page with white letters. Thanks to being a touch typist, I don't need to see the keybord or page to type but i can't see what I am typing on a dam w hite page! I now cannot click on "Email me when someone answers the threadil"

Hi I am trying to figure it out how to install 2 AddOn onto Tool menu bar. But it is still unsuccessful to do so. I do need some advice to install them onto Tool menu bar. Thanks

note: I have been using macBook . Mozilla Firefox is totally new program to me . And today is my first day to install firefox in macBook.