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How to set PDF viewer in firefox to dark mode again (after it stopped working)

I view a lot of pdf documents via firefox, the light gray background makes my eyes and head hurt after prolonged usage. In the past I found a solution on this forum that… (閱讀更多)

I view a lot of pdf documents via firefox, the light gray background makes my eyes and head hurt after prolonged usage. In the past I found a solution on this forum that advised to set pdfjs.viewerCssTheme to "2" in about:config. This set the background of pdf viewer to black/dark gray. This has worked for years until recently when the pdf viewer switched to light mode again (pic 1). I checked the about:config settings for pdfjs.viewerCssTheme but there appears to be no change. I tried restarting the browser, setting the theme to 0 and to 2 again, updating browser. Sadly the theme is still light gray. Is there a way to change it again? The desired outcome is in pic 2. I do NOT want to change the color of the pdf pages themselves.

K 於 3 個月前 詢問

zeroknight 於 3 個月前 解答

Typing

When I type my last name using shift + first letter, it always comes out in lower case, which wastes my time correcting. How do I set it back to using upper case with sh… (閱讀更多)

When I type my last name using shift + first letter, it always comes out in lower case, which wastes my time correcting. How do I set it back to using upper case with shift +?

Thank you.

mnosera 於 1 週前 詢問

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How to disable protection, or enable dark mode, for Firefox pages

I've always liked the Firefox New Tab page, with Pocket, and until today, DarkReader plugin has always worked. But now it says that it can't because the page is protecte… (閱讀更多)

I've always liked the Firefox New Tab page, with Pocket, and until today, DarkReader plugin has always worked. But now it says that it can't because the page is protected.

I tried the solution to use bookmarklets, suggested in https://support.mozilla.org/en-US/questions/1350781, but it didn't have any effect (https://sanketmehta7.github.io/DarkMode-JS-BookMark/

If I can't find a solution, I'll just ditch Pocket, and use Google as my first page, or something. Or maybe ditch Firefox, which doesn't seem to think that dark mode is important. I don't like being blinded by the light.

Jeff Learman 於 3 個月前 詢問

cor-el 於 3 個月前 解答

Firefox won't play YouTube videos. Tried everything. I'm ready to switch browsers - permanently!

Firefox won't play YouTube videos. I've tried everything. There seem to be plenty of problems on the forum BUT NO SOLUTIONS! I'm ready to switch browsers - permanently… (閱讀更多)

Firefox won't play YouTube videos. I've tried everything. There seem to be plenty of problems on the forum BUT NO SOLUTIONS!

I'm ready to switch browsers - permanently!

Marcus Tarrant 於 3 個月前 詢問

thinkamehill 最近回覆於 1 週前

Firefox reopens previous tabs while incognito window is active

As long as I have an incognito window open, Firefox will reopen old tabs everytime I open a new "regular" window, even if "Open previous windows and tabs" is unchecked. … (閱讀更多)

As long as I have an incognito window open, Firefox will reopen old tabs everytime I open a new "regular" window, even if "Open previous windows and tabs" is unchecked.

lokeyhermit 於 3 個月前 詢問

Graham 最近回覆於 2 週前

Pin extensions to toolbar.

Why can't you pin the extension 'Tiny URL' to the toolbar any more? This extension is really useful! I don't want to have to excavate Firefox to use it. Tiny URL is mo… (閱讀更多)

Why can't you pin the extension 'Tiny URL' to the toolbar any more?

This extension is really useful! I don't want to have to excavate Firefox to use it.

Tiny URL is more useful than the rather silly 'Pocket' which just seems to be a page full of adverts

Joan Kemp 於 3 個月前 詢問

redss 最近回覆於 2 週前

Linux: Unable to grab a tab from a non-focused window

Firefox for Linux has a bug where it is unable to drag a tab from a non-active window. As in, if the window focus is on Firefox window A and I try to drag a tab from Fire… (閱讀更多)

Firefox for Linux has a bug where it is unable to drag a tab from a non-active window. As in, if the window focus is on Firefox window A and I try to drag a tab from Firefox window B to window A, I have to click first the window. I can't just intuitively drag the tab from a non-active window, because it will get ignored. It will just activate the window, ignoring the drag.

Firefox for Linux, running on Nobara KDE latest desktop. Confirmed also on KDE Neon latest desktop.

Jon 於 1 個月前 詢問

Jon 最近回覆於 2 週前

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Suddenly cant delete emails in outlook.live.com

Starting this morning I suddenly cant delete or mark emails as read in Outlook.live.com. Even if I open an email, and it appears as read after that, if I refresh or leave… (閱讀更多)

Starting this morning I suddenly cant delete or mark emails as read in Outlook.live.com. Even if I open an email, and it appears as read after that, if I refresh or leave the page and come back, its marked as read again.

I tried dropping all add-ons (a kill switch to drop all add-ons and re-activate them is still a feature I feel Firefox needs, I have to click every single one of them every time) to no avail.

I was in the process of writing this question on the Microsoft forums (which is usually like whizzing in the wind) when I thought to try a different browser. I had zero issues and Outlook.live.com worked perfectly normal on Microsoft Edge.

This HAS to be a bug in a recent update in Firefox

Adrenoreceptor 於 3 個月前 詢問

Adrenoreceptor 於 2 個月前 解答

Firefox could not download the search plugin from amazon.co.uk

The Amazon.co.uk search plugin was working but now its not and when i try to click "add search engine" a box pops up with Firefox could not download the search plugin f… (閱讀更多)

The Amazon.co.uk search plugin was working but now its not and when i try to click "add search engine" a box pops up with

Firefox could not download the search plugin from: https://d2lo25i6d3q8zm.cloudfront.net/browser-plugins/AmazonSearchSuggestionsOSD.Firefox.xml

another post suggested checking the about:config browser.search.region mine says "GB" which would be correct for .co.uk

All other search plugins work fine. Any suggestions?

JackDinn 於 1 個月前 詢問

Terry 最近回覆於 1 個月前

Drop down box will not allow me to make a selection.

I am accessing my ISP to download the security software. I need to be able to select the Operating System. When I click on the drop down box I am prompted for the OS, b… (閱讀更多)

I am accessing my ISP to download the security software. I need to be able to select the Operating System. When I click on the drop down box I am prompted for the OS, but when I select it the drop down box does not populate. I then get a message to select the OS. This works with Microsoft Edge.

Bill 於 1 個月前 詢問

zeroknight 最近回覆於 1 個月前

refresh took away my add-ons!

Hi there - I accepted Firefox's prompt to "refresh" the browser and had no idea it would take away my add-ons. How do I get these back? I don't even remember what they … (閱讀更多)

Hi there - I accepted Firefox's prompt to "refresh" the browser and had no idea it would take away my add-ons. How do I get these back? I don't even remember what they all were, but I know they made a huge difference and now I can't believe all the ads I'm seeing and then my "facebook container" (and other kinds of container tabs) is gone too! How do I fix this? Can I undo the "refresh"??

lisainrennes 於 1 個月前 詢問

TyDraniu 最近回覆於 1 個月前

how to pass file name to file manager with the "show in folder"

There is "show in folder" menu for file in downloads. And it will launch my file manager at the parent folder for the selected download file. There are so many files in … (閱讀更多)

There is "show in folder" menu for file in downloads. And it will launch my file manager at the parent folder for the selected download file.

There are so many files in my downloads folder, so i would like the specific file to be autoselected. My file manager support this if i pass the filename as parameter in the commandline.

However, seems that firefox only pass the parent folder path to my file manager in the "show in folder". However can i customize firefox so that it will pass the full file name to my file manager when i click "show in folder", and my file manager will open the parent folder with the specific file autoselected.

13641945642 於 1 個月前 詢問