Firefox Support Forum

My bookmarks are in the list, but URLs which are not bookmarked are also in the list. (I say some of the entries are not bookmarks because there is no blue star if I double click on them.)

In about:config javascript.enabled = True

I didn't change any settings there.

If I place, for example, " "options_ui": {

   "page": "settings.html",
   "open_in_tab": true
 },"

in the manifest.json of the extension, it does open the settings.html page as intended. Problem is that no JS script on settings.html works, be it if it's inline HTML or as a separate file (I tried separate file, as I thought it might be a security thing).

I mean even simple JS such as console.log or

"<button onclick="showPopup()">Show Popup</button>

   <script>
       function showPopup() {
           alert('Hello! This is a popup.');
       }
   </script>"

Other actually installed extensions - their JS on settings pages runs.

I also tried running settings.html as a popup, and I succesfully done so, it's just that once again JS didn't work...

I'm at my wits end, I have googled, I have chatted with the ChatGPT, took me hours thinking it was something wrong with my code... I'm actually making something useful, never done before (it reads out youtube subtitles via TTS, providing ability to still hear original sound, its emotions, no need to look at the screen and it's also a passive language learning type of thing), and it works, it's just that setting page's JS, which I think I need to allow users change speed of TTS and volume of the TTS

Had the line

.tab-close-button:not([pinned="true"]) { display: -moz-box !important; }

in my userchrome.css which put the close button on all tabs. This no longer works.

Also there is no Close Button (X) on hover for inactive tabs.

Hello all,

I am having problems with video playback on some websites (see screenshot attached). The problem is that the video options start to "multiply" - for example, when I start the video there is (as is normal) one 'Speed' and one 'Quality' button, but then every second these buttons start to multiply. This happens only on some websites - for example, it does not happen with normal videos on YouTube, although it happens on YouTube Shorts sometimes.

This is my first question on the Mozilla Support page, I thank you in advance for your help and I hope I follow the community guidelines. Please feel free to leave any suggestions or feedback concerning how I should proceed for asking for help in the future.

Hello, Today, when I first open Mozilla I noticed that I have problems with fullscreen mode. When I use fullscreen (f.g. on YouTube, but it's with all clips in other pages too) I can see white borders (on the left, right and at the bottom). I checked on other browser (Chroma) and I don't have this problem there. Can this problem be connected with new update? Or something just broke and I should re-install?

After updating from version 112 to 113 - performance has dropped dramatically.

In the beginning the performance after the update was faster than before. But as of tonight and today it's much worse than it was before the update.

I noticed that the browser started using more CPU than usual. Ryzen 7 5800X3D.

Cleaned cache already two times - didn't help. Tried Safe Mode - didn't help.

Since Ebay changed their format for auction ads the photos that are part of the ads open as faint negatives that can barely be seen. However, if you right click on one and save to a new tab they are fine.

When trying to play videos on my laptop they look terrible. The video is completely blown out and doesnt apear as it should. When turnnig on the troubleshoot mode it fixes it but then the video becomes choppy. I cant attach a photo because it looks normal when a screenshot is taken

FF 113.0.2 Win 7 64 Bit

When I read a pdf online it gets downloaded even though FF is set to always ask. When it asks I choose open with FF or open with Adobe Reader . Both downloads the file to my download folder. It doesn't ask what foder to download to even though I have FF set to ask where to download to in settings/general

I tried setting browser.download.improvements_to_download_panel to false as here https://support.mozilla.org/en-US/questions/1370494 but it didn't help

i cant move the tabs around in the task bar. my firefox version is up to date, but yesterday-ish my laptop forcibly updated itself. its still on windows ten, but thats the only thing i can think of other than installing a kidpix four emulator that may have caused the problem

When FF (113.0.1) is maximized clicking on the first (left hand) pinned tab does not open the tab. Hovering over the tab doesn't change the background color of the tab.

If I restore down the window, hovering over the tab changes the background color of the tab from light grey to a slightly darker grey and clicking the tab opens it.

With the latest update to Firefox (116.0.1) typing anything in the search bar looks as though my keyboard is mapped to everything - every keypress does something different. This only affects Firefox, no other program behaves this way (Word, Excel, Discord, etc.).

Currently running Windows 10, AMD Ryzen 7 1800, DDR4 RAM, Malwarebytes, and ZoneAlarm Extreme Security version: 15.8.139.18543. Had to revert back to Firefox 113 to type this via downloading it via Edge.

These bugs have probably already been reported but just in case they haven't there's an issue where dates can't be viewed on Facebook posts without hovering the mouse cursor over the title of the post. The other bug is the cursor often, but not always disappears when commenting on posts.

When I open the Google "Choose an account" page, my account name doesn't show up above my email address. The problem ceases only temporarily when I clear the cache and the Google cookies. Any suggestions?

On some websites text selected by dragging the mouse appears with light gray background on white.

• See screenshot "Bad contrast" appended.
• Original: https://edition.cnn.com/2023/05/12/world/largest-cosmic-explosion-scn/index.html

What I did to check for possible local problems:

• Hardware (AMD Radeon HD 6670 connected by HDMI to Acer-QG241Y)

Used monitor color-test (https://www.eizo.de/monitortest/) and fiddeled arround with all color-gradients: all smooth.

• switched off anything I could think of in Firefox (13.0 64 Bit Win 10 (updated today))

Extensions, plugins, themes

So I suspect there is no problem at all with my hardware or software. Just an bad choice in the color design of the websites I visit.

If so, what can I do? Is there any chance to provide some remedy locally? Installing a theme (I don't know anything about themes) or provide a local CCS to override the CSS of the website? (Would not know how to connect such skript to Fx and what to "instructions" to specify inside. But as I understand the idea of CCS correctly, this is an option that it was built for.)