Rainbow Blur (4K/Widescreen Fix)

A quick fix of the issue that occurs to the left of the tab bar when using high resolution monitors. Not a perfect fix, but may do the job. Full creds/greetz to the original author: https://addons.mozilla.org/en-GB/firefox/addon/rainbow-blur-1/

Rainbow Blur (4K/Widescreen Fix) is available to install from Firefox Browser Add-ons and for download from this page. It has 24 daily users. The latest version is 2.0, and it was last updated 5 years ago.

View source code

Install from Firefox Browser Add-ons

Total download count: 0 (Only count downloads from Firefox-Stats)

All available versions

You can find the current and older versions of Rainbow Blur (4K/Widescreen Fix) here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

Upgrade to download older versions

Version	Download	Size	Download count	Timestamp
2.0	XPI · ZIP · Source code	486.22K	0	2020-06-25

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.

Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

Download the Rainbow Blur (4K/Widescreen Fix) ZIP file
In Firefox browser, go to about:addons to open Add-ons Manager
Click on , then select Install Add-on From File
Select the Rainbow Blur (4K/Widescreen Fix) ZIP file from step 1. Rainbow Blur (4K/Widescreen Fix) is now installed on your browser.