Disable timeline blur on Twitter (based on @furfnsfw's userstyle)

filters.txt

# Remove blur from Twitter (furf's version)
twitter.com##li[id^='verticalGrid'] div *, article > div > div > div > div > div[id] > div > div > div > div > div:style(filter:blur(0px)!important;)
twitter.com##li[id^='verticalGrid'] > div > div > div > div:last-child, article > div > div > div > div > div[id] > div > div > div > div > div + div:has(div[role="button"]):style(display:none!important;)

Disable Twitter Content Blur (tutorial)

You can get rid of the pesky content warning using an adblocker!

Note! The following tutorial is only for the web version of Twitter, on either Firefox or Chrome

1. Install uBlock Origin (if you already have it, skip to step 2)

Firefox: https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/
Chrome: https://chromewebstore.google.com/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm

2. Open the uBlock dashboard, and go to the My Filters tab
   

3. Paste the following filters into the list, then click Apply changes

# Remove blur from Twitter (furf's version)
twitter.com##li[id^='verticalGrid'] div *, article > div > div > div > div > div[id] > div > div > div > div > div:style(filter:blur(0px)!important;)
twitter.com##li[id^='verticalGrid'] > div > div > div > div:last-child, article > div > div > div > div > div[id] > div > div > div > div > div + div:has(div[role="button"]):style(display:none!important;)  

4. Refresh Twitter, you're done!