Diễn đàn hỗ trợ Firefox

Recenltly bought new laptop and installed a new version of firefox, but now I cannot get it to show my extensions.

The screen shot shows what (IMO) is supposed to to be, but all I get is the default buttons for firefox 2nd picture

[Devtools] You have been enabled new edit and resend panel by default, its a panel won't allow users edit some fields of headers. However, in the old panel, we can do what ever we want, like modify the cookies of the new request. I wonder why you just disabled those fields? Are there any settings I can set to make those fields editable? It's a really bad design for developers who definitely will need to edit those protected headers.

Extensions no longer shows on Customize Toolbar tab on the latest version 111.0. I had Dark Reader and SoundFixer on the toolbar before and I can no longer add them back.

I've been with yellow folders for several years. In the version that I have now, version 111, no longer works. I was put at userchrome.css the following: @namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul); .bookmark-item[container], treechildren::-moz-tree-image(container) { fill: gold !important; } treechildren::-moz-tree-image(container, OrganizerQuery_BookmarksToolbar) { fill: black !important; } treechildren::-moz-tree-image(container, OrganizerQuery_BookmarksMenu) { fill: black !important; } treechildren::-moz-tree-image(container, OrganizerQuery_UnfiledBookmarks) { fill: black !important; } treechildren::-moz-tree-image(container, livemark) { fill: orange !important; } .bookmark-item[container][query], treechildren::-moz-tree-image(container, query) { fill: dimgray !important; }

I do not know because it doesn't work now. Maybe version 111 no longer admits it? Do you know how to put the yellow folders?

Expected: Firefox displaying all known Unicode characters.

Result: Many characters missing.

Failure page as an example: https://en.wikipedia.org/wiki/Religious_and_political_symbols_in_Unicode

Description: I tried going through a Unicode list Unicode list and the extensive set of characters displayed correctly. However, when reaching further into character sets as shown in the failure page page, many are missing which are not new.

• "Repair encoding. . ." button was not active.
• An encoding switch extension was not able to resolve the issue.
• Troubleshooting mode did not show changes.
• Switched fronts available such as Noto Sans and Roboto Sans without success. Possibly a font failure?

Is there a way to fully edit a .pdf file in the new Firefox browser? I know how to annotate, but I don't see any way to copy and/or paste. This originally came up when I wanted to copy one sentence from of an entire document. Thank you.

I logged onto my daughters school google account through firefox and now they are managing my browser. Which registry do I need to delete in order to remove this so I can use firefox again? Can I just delete the entire Mozilla folder

In short, "Open previous windows and tabs" is no longer working. I'm using version 111.0 (64-bit).

I have done the following: 1. Troubleshooting mode 2. Removed or disabled all my extensions 3. Refresh Firefox - twice! 4. Disconnect sync across my two laptops

Still, nothing is fixing the issue. My previous windows and tabs are not being restored.

Help, please!

So switched over to firefox from chrome recently and one feature I really liked on chrome was the fact that bookmarks that appeared on the browser toolbar also appeared on the drop down menu: both were mirrored. Unfortunately, these appear to be two distinct bookmark sections on firefox. See the attached photo: the horizontal bookmarks toolbar displays different bookmarks than the drop down bookmarks menu. Is there any way to make the two mirror each other without duplicating bookmarks?

Everything that has an active state seems to have suddenly gained huge thick borders, usually grey or black. This applies to UI and page elements. I have no idea what happened, I'm guessing an update changed 'something', but how do I nondestructively fix it?

All webpages seem affected.

(reddish bars in second screenshot are my removing some URLs, but everything else is my UI as seen)

Thanks greatly for any insights...

Same as this question, but the answer is outdated: https://support.mozilla.org/en-US/questions/839240

Is there a way to do this in the about:config page?

There is an answer about holding `Alt`, but that is a workaround.

This morning I noticed that my Firefox history has lost everything before April 2018. Fortunately I have another computer in sync with the first computer, and I was able to transfer the file places.squlite and recover my history. But why did it happen? And it's not the first time. Last year I lost from 2015 to 2017 or so. How can I prevent this from happening again?

I have never had trouble with swiping left and right with 2 fingers to go back and forward between webpages. Recently, this has stopped working. I have updated Firefox to 111.0 and have double checked the browser.gesture settings as being "Browser:BackOrBackDuplicate" and the corollary for forward. This is for Firefox on a Mac Air running Ventura. Any advice is appreciated.

I use a web trading platform(PowerEtrade). When I am on my 15.6" laptop, windows 10, I have a nice fat slide bar. When I am on my 17.5" laptop(windows 11) the slide bar disappears and will only show when the cursor is over it and then it is raxor-thin. Is there a fix for this?

For some reason I can't access the Spotify website (spotify.com or https://open.spotify.com/). I get this error message:

Page not found - We can’t seem to find the page you are looking for. Any ideas? This is infuriating. I'm on a Mac running Ventura and the newest version of Firefox. Thanks.

Dear community,

This morning, after a reboot of my Laptop during the night, I opened Firefox with the frustrating surprise that I lost all my bookmarks and all my history (websites and downloads). The saved passwords looks fine.

How could that have happen? Need your help to get those back... specifically my bookmarks!

Note: I went trough several support articles of Firefox but none helped. I tried to restore my bookmarks but got the message "Unable to process the backup file.".

Any thanks.

I noticed this first when I had to force Google to go into dark mode even though firefox was already in dark mode.

I have searched through some issue reports and have seen a lot of people mentioning that their system theme is not being detected properly. This is not that issue. I can set the firefox "Website appearance" to dark or automatic at which point the UI of firefox itself does do into dark mode so no issues there. However if I go to a website that tries to query 'prefers-color-scheme' and set its theme accordingly it always returns 'light'. This is the case even if I set the 'layout.css.prefers-color-scheme.content-override' to 0 in about:config.

I used this website to test: https://septatrix.github.io/prefers-color-scheme-test/

The issue persists when opening a website in a private window.

Let me know if I need to provide additional information.

-Felix