Mozilla Connect

One of my favorite extensions in Chrome was the ability to double click a word and it would give a pop-up with the definition. I have not found any extensions like this for Firefox (at least ones that work).  ... View more

I love the recent feature of editing PDFs with comments/sticky notes. However, clicking the "Comments" button on the top-right of the screen to show all the comments in the document in the right margins appears to prevent adding more comments until it is turned back off. Specifically, once the Comments button is selected, text cannot be selected/highlighted by dragging the mouse over it. Once the comments are shown, I'd love to add comments while looking at existing ones! ... View more

Improve Collections usability in Firefox Android (delete confirmation & reorder bookmarks) Description: When browsing Collections in Firefox Android, I often accidentally delete a link by swiping left. The gesture is sometimes misinterpreted by the phone instead of scrolling down, which leads to unwanted deletion. Additionally, there is currently no way to reorder bookmarks inside a Collection directly on the device. If a bookmark is deleted and then re-added, the new entry changes the order of the Collection, which is undesirable. Proposed solution: Add a confirmation dialog before deleting a bookmark from a Collection, or allow users to disable the left-swipe delete gesture entirely. Introduce the ability to manually reorder bookmarks within a Collection on the device. Benefit: These improvements would prevent accidental data loss and give users more control over how their Collections are organized. It would make Collections more reliable and user-friendly, especially for those who rely on them for productivity. ... View more

Can we get the automatic darkened color open tab indicator back? It was useless and pointless to remove the darkened open tab indicator to now all tabs being the same exact color as the open tab. In the past, which ever tab you were on, was darkened as a standout so when you left that tab for some reason, you'd know exactly where your open tab was at, when you're running a hundred tabs. Then you could easily find where you were before the browser somehow took you 50 tabs away from opening a new tab.    Now, without a dark tab identifier, if the browser take you off your tab by opening a new tab way at the end, you're lost, you can't even find where you were, and have to go through 100 open tabs to see what page you were last on. This is very annoying and very tedious because sometimes you got loud audio playing on the last tab and you can't even find it to mute it. In the past, if a new page took you to the back of a 100 tab open browser, you could just look for the darkened tab as it stood out and jump back to your last tab you were on before being shifted to a new open tab that often happens when you click on some links within your tab. Don't know why Mozilla Firefox would go backwards on this. It was a just a dumb move for efficiency.  They may say, just pin the tab and know where the tab is at, but some pages you just happen to land on for short reading, and don't expect to read for a long time, and may hit a link and it takes you to another page, and boom, you're lost buried into 100 pages with not way where you were, and music or sound may be playing and you're lost, and can't find the past tab you were on.  In the past when a link shifted me to a new page when I had a hundred plus tabs open, it was so easy to find the dark tab. Now all a hundred tabs including the open one, is all the same color. Mozilla, please bring back a darkened open tab indicator back to Firefox, I'm tired of being lost when taken from my open tab page to a new page because I can't identify the last tab I was on before being shifted to a new tab from a link.  Thank you.   ... View more

Hello. If the "Open previous windows and tabs" setting is enabled and a domain is added to the exception list with the "Allow for Session" status, then when you restart the browser, the data for that site isn't deleted and is restored along with the previous session. This poses a threat to privacy (if you add a site to exceptions to prevent it from storing cookies and data for more than a session). I understand that all other sites save their sessions and tabs, but why not delete the data for these excluded sites and close their tabs automatically when you restart the browser? This is exactly how it should work intuitively. ... View more

sometimes I find myself in the possition that I want to place some extra, personell text in an incomming mail.  not just a lablecolor but a real piece of text.  To place text in the header of an e-mail, it should be nice to have the possibility to have an extra collumn wherein the text can be put.  I think that when te mail is opened, the add-on xnote++ will do, but thats more like a post-it instead of writing something between the lines...... best regards Raoul Fransen Minderhout Belgium ... View more

Hi everyone! I often use Firefox windows for websites like WhatsApp or Telegram. These websites are not really just “regular websites” but rather full-featured, semi-standalone web applications. It would be incredibly convenient if, for such windows, I could hide (remove) the navigation toolbar with the back/forward buttons and the address bar, so that only the website content remains visible. F11 does something close to what I want, but it switches the window into fullscreen mode. Would it be possible to add a button, menu item, or shortcut (for example, Shift+F11) that hides all browser UI in the window without going fullscreen? ... View more

I want to upload an image to a site which does not support loading images from URL. It would be nice if I could open the image in another tab, and then drag and drop it in the "dropzone" of the other tab, bypassing the need to download the image. ... View more

To make the experience smoother for users of different computer generations. We would like to give users the ability to select the "Prefer hardware accelerated codecs" option in performance browser settings. The idea is simple: Firefox will first select the codecs that are confirmed to be hardware-accelerated for the user's computer. Today, Google YouTube tells browsers to use the AV1 codec with high priority. And browsers follows this, despite the fact that VP9 and AVC codecs are also available.  We can change this to ensure smooth playback across diverse hardware configurations. The goal is to ensure smooth, seamless playback for all users by effectively adapting to the specific hardware acceleration capabilities of each machine.  Let's vote to change how Firefox prioritizes codecs that will unlock the full potential of hardware acceleration for everyone. Let's change the default behavior so more people can enjoy the pleasure of using Firefox. Let's provide this opportunity to all users. ... View more

I propose adding a new media query to detect user handedness preference, similar to existing `prefers-*` queries like `prefers-reduced-motion` and `prefers-color-scheme`. Proposed syntax: ```css @media(prefers-handedness: left) {   /* Styles for left-handed users */ } @media(prefers-handedness: right) {   /* Styles for right-handed users */ } ``` Use case: Handedness significantly affects UI interaction, particularly on mobile devices where touch targets and navigation controls should ideally be positioned for comfortable thumb reach. Approximately 10% of the population is left-handed, yet most mobile UIs default to right-hand optimization. Practical applications:  Positioning floating action buttons and navigation controls on the appropriate side Mirroring toolbar layouts for thumb accessibility Mirroring toolbar layouts for thumb accessibility  Adapting swipe gesture directions Optimizing one-handed mobile interface layouts Current situation: Developers currently have no way to detect handedness preferences without building custom in-app settings. This forces users to adapt to right-handed defaults or requires each app to implement individual solutions. Precedent: This follows the established pattern of existing accessibility and preference media queries (`prefers-reduced-motion`, `prefers-contrast`, `prefers-color-scheme`, etc.) that expose OS-level user preferences to web content. OS integration: Many mobile operating systems already have handedness settings (particularly for keyboard placement). This media query would expose that existing preference to web applications. This seems like a straightforward accessibility improvement that would benefit a significant portion of users with minimal implementation burden. ... View more

Regarding profiles creation, I suggest adding an option to password-protect each profile. This would be much better than (about: Profiles), which is also a password-free profile. ... View more

There is no filter that checks the presence or absence of attachments and the name of the attachment.  ... View more

I like to use access keys via context menus sometimes, but when I right-click on the Spam folder, both "Search Messages" and "Empty Spam" have "S" as their access key, so I can't just hit one letter to empty spam. ... View more

Currently, empty lines at the end of signatures are removed. But these lines may be helpful to add some space between the signature and the quoted email, if the signature is placed above the quoted text. Without extra lines, there is almost no space between the new email and the quoted text. ... View more

When saving messages to disk (or dragging&dropping them) it can be extremely useful to touch the date and time of the saved messages to the date and time of the original email message. This feature allows you to maintain the chronology and properly sort messages also on disk. ... View more

As of 12/9/25, Firefox seems to now prevent Theme add-ons from working if there is a contrast setting configured in Windows configuration. (Version 146.0) Previously, this allowed a very aesthetically pleasing view. I would greatly enjoy having that option again. Thank you. Idea/enhancement request opened based upon Mozilla Support discussion. ... View more

Summary I’m proposing an optional reading-direction toggle (Top→Bottom / Bottom→Top) for Firefox Reader Mode and accessibility settings. The feature reorders rendered text only (presentation layer), without changing content, semantics, or DOM structure. Problem Standard top-to-bottom reading increases visual strain, cognitive load, and focus decay for a meaningful subset of users—especially those with ADHD, dyslexia, visual tracking strain, or anxiety-related focus lapses. Observation / Evidence I conducted a pilot study with 333 global participants comparing standard reading to a bottom-to-top (“ladder”) presentation. Results showed measurable differences in perceived focus, breathing ease, and reading persistence, with strongest effects among focus-challenged readers. This is not a replacement for standard reading—only an optional toggle. What the toggle does Reverses display order of lines (bottom→top) No change to text, grammar, semantics, or layout logic User-controlled, off by default Ideal for Reader Mode / accessibility preferences Why Firefox Firefox already prioritizes reader control, accessibility, and experimental UX features. This toggle fits naturally alongside font size, spacing, and contrast controls. Request Explore this as an experimental accessibility / Reader Mode feature. I’m happy to provide anonymized study results, mockups, or participate in UX review. Link to deck / study 👉[https://docs.google.com/presentation/d/162Qz2VQyQsV6t061lpzgcz9TVu8CCObn/edit?usp=drive_link&ouid=112815293028205595751&rtpof=true&sd=true] ... View more

When new unread mail arrives in a folder, Thunderbird turns the folder-name and unread-mails count to Blue. However, this indication does not survive a restart, so if a folder currently has new unread mail and TB is restarted (or for instance a Windows restart occurs) then the folder remains unmarked. Could the "new unread mail" status be preserved so that the indication is shown when TB restarts? I'd suggest that no "new unread mail" should remain unmarked, "new unread mail from previous sessions" be marked in one colour and "new unread mail in this session" be marked in another. My preferences would be black, turquoise and hot pink for these three states. Others would inevitably disagree, so a simple colour-select facility (possibly via config) would be desirable ... View more

Hello! Please add auto-filling of bookmark contents (title and URL) when adding a new bookmark. Chromium-based browsers (Chrome, Brave) automatically add the title from the HTML and the active tab's URL. Currently, when trying to add a new bookmark, I have to first compose the URL and manually paste it into the new tab fields — this is inconvenient. Thank you. ... View more