Firefox Community Forum

My page throws errors in Firefox Nightly such as

Expected color but found ‘undefined’. Error in parsing value for ‘background-color’. Declaration dropped. preview.htm:1:1

and

Expected color but found ‘undefined’. Error in parsing value for ‘color’. Declaration dropped. preview.htm:1:1

The page references ten CSS files besides having dozens of its own CSS declarations. The issue is tha the reference provided to the error (:1:1) does not indicate where I can find the error. That is, I don't know which declaration is at fault. Is there some straighforward way to find the declaration in question?

With the release of Firefox 133, I switched from the add-on Tree-sized tabs to the newly implemented Vertical tabs, and so far I really like the feature. Although, I was wondering if there was a way to reduce the width of the expanded sidebar? Thank you for taking the time to answer my question.

Does anyone know where Mozilla wallpapers are stored? I wanted to set a wallpaper from Mozilla's menu as the desktop wallpaper on my laptop. I looked for hidden files and checked the forums, but I can't find them in the given locations e.g. my profile. Maybe these files are masked somehow. I'm looking for particular wallpaper from the abstraction category (screenshot). Can anyone tell me how to find it?

Yet another sterling example of why change is usually bad. Why did Firefox, Google and other browsers (though don't know about Duck Duck Go) drop the 100 results per page option? I've always had that enabled and now that it was removed it makes searching extremely tedious and time wasting. Please offer a SIMPLE AND QUICK way to restore this option ASAP. Thank you.

I want AI to ALWAYS open when opening the sidepanel. That's why you have a side panel... So how the ... do I STOP Firefox from always opening Bookmarks when the sidepanel is opened?

And No, it doesn't remember last saved choice.

And please fix the ... scaling problem with AI making users manually press UP ARROW to send the message instead of ENTER when the sidepanel is below 40% of the ... screen. This is highly ... annoying!

Is it possible to bookmark a particular section of a page, whereas the bookmark will take you to that location?

Textmarker was suggested in another thread, but apparently it is no longer working.

How do I get rid of these constant firebox pop ups that block tabs that I have open. it is EXTREMELY affecting my ability to use my laptop. I WANT TO KNOW HOW STOP THIS BS

How do I remove the sidebar permanently. It is now as I said above about 2.5cm wide and growing! I want it gone and none of the solutions give any idea how to do this. The show/hide button only made the damn thing expand!

Hello

I use Firefox 132.0.1 under Fedora 14 Linux. Whenever I click an urls in another application (e.g. Libreoffice, Keepass...) a new tab is opened in Firefox (according to Firefox's settings), but Firefox itself does not pop up in the foreground, it remains in the background. I highly appreciate the setting 'open links in tabs instead of new windows'. But FF only comes to foreground in case I deactivate 'open links in tabs instead of new windows'. How can I prevent FF to stay in the background in case 'open links in tabs instead of new windows' is enabled?

Thank you in advance

There is a setting on Firefox that prevents me from responding to comments. I tried on another browser and do not have the same problem. Yahoo sends notifications that there was a response to my comment with a reply button. Although when pressing reply it is suppose dto take you to that comment and it does not. It takes you to the beginning of the comments. I have not changed any settings.

When I send an email using Gmail, Firefox stores a copy in "Sent Mail", another copy in "Sent", and another copy in "All mail" . Why is this and how can I stop this? Or how can I delete two of the duplicated storage locations? Thank you

Recently a new sidebar appeared on Firefox on my desktop. I actually really liked the change because I have wanted to move my tabs to the side for a while. I had tree style tabs installed and I was a little annoyed that I couldn't disable the tabs on the top bar. But now I can!

My laptop however does not have the new sidebar yet and when I look for updates it says there aren't any. My laptop has limited screen space and I much prefer to have this new ui choice but I can't enable it. I understand that they probably update new designs in batches to test the waters but is there a way to get around it and enable it on my laptop too?

I use the same Firefox account for both so it seems a little counterintuitive to have different experiences on different devices on the same account.

Also very much thank you for this change! It's something I've wanted for a while. I also have one little suggestion and that is to have the option for a similar feature to tree style tabs on the sidebar tab layout.

I updated my desktop browser today and now there is an expandable sidebar at the left margin of the window showing tool icons for Tabs from other devices, History and Customize sidebar. I can see how to remove tool icons and how to expand or collapse sidebar but can I remove the sidebar completely? Is this an option? I prefer the old look with the browser web page content extending all the way to the left of the screen, without the narrow vertical sidebar.

Firefox on my 2018 MacBook Pro started having issues downloading all file types after I disconnected Dropbox sync and backup. Each time I try to download a file, a failed message is displayed below the file name and type. The browser was using the downloads folder that was synced with Dropbox. After disconnecting Dropbox, I tried changing the downloads location, but the "Choose" button does not display a window. The result is the same whether the Always ask you where to save files is checked or not.

I have gone through the following steps trying to resolve this issue with no success.

1. I have reset/cleared any configuration setting found using about:config and browser.download.
2. I have launched Firefox in troubleshoot mode and tested downloads with no resolution.
3. I have uninstalled Firefox and installed a fresh copy from mozilla.org with no resolution.
4. I have set the downloads folder in Safari, but this did not provide a resolution. Downloads work as expected in Brave and Safari. The current downloads location is the Downloads directory on my iCloud Drive.

The second screenshot with the error attached in still referencing the Dropbox-connected Downloads folder. No other browsers are using this folder and the Dropbox app has been completely removed from my laptop.

I use Firefox for web development and need to be able to download various files throughout the day, so this has become very frustrating.

Any help is greatly appreciated.

Cheers,

When right-clicking, neither Languages nor Check Spelling is displayed in the context menu. The language pack and dictionary are activated. In the settings, the checkbox for "Check spelling as you type" is selected, and the current Firefox version (133) is in use. However, no spell check is performed. I don’t know how to adjust the settings so that the options are visible and selectable in the context menu. I would appreciate your help. Thanks so much!

I'm using Firefox 133 (64 bit) and just recently the down arrow on the right hand side is missing. I still have the up arrow. How do i get the down arrow back.

Thx for your help in advance.