Oh it's nice to see productivity ones. I mostly use bookmarklets on my phone to fix annoyances bc on a desktop browser you can just open the js console or inspector.

I beefed up the 'kill sticky' one <https://news.ycombinator.com/item?id=32998091> but that's not very interesting. Here are some other ones:

* Re-enable zoom on iPhone (for pages that disable it)

    javascript:document.querySelector('meta%5Bname=viewport%5D').setAttribute('content','width=device-width,initial-scale=1.0,maximum-scale=10.0,user-scalable=1');

    javascript:(window.openPageWithoutScripts=async%20function()%7Bconst%20resp=await%20fetch(window.location.href);const%20text=await%20resp.text();const%20doc=new%20DOMParser().parseFromString(text,'text%2Fhtml');doc.querySelectorAll('script').forEach(script=%3Escript.remove());const%20w=window.open();w.document.head.innerHTML=doc.head.innerHTML;w.document.body.innerHTML=doc.body.innerHTML;%7D)(); 

    javascript:(function()%7Bvar%20a=window.open('about:blank').document;a.write('%3C!DOCTYPE%20html%3E%3Chtml%3E%3Chead%3E%3Ctitle%3ESource%20of%20'+location.href+'%3C/title%3E%3Cmeta%20name=%22viewport%22%20content=%22width=device-width%22%20/%3E%3C/head%3E%3Cbody%3E%3C/body%3E%3C/html%3E');a.close();var%20b=a.body.appendChild(a.createElement('pre'));b.style.overflow='auto';b.style.whiteSpace='pre-wrap';b.appendChild(a.createTextNode(document.documentElement.innerHTML))%7D)();

    javascript:(function()%7Bdocument.oncontextmenu=null;window.oncontextmenu=null;%7D)();

    javascript:(function()%7B;document.onselectstart=null;document.onselectchange=null;document.ondragstart=null;document.onmousedown=null;window.ontouchstart=null;window.ontouchend=null;%7D)();

As a Reddit user I'm using this simple replace function to switch to the old.reddit.com version of a page:

javascript:(function(){ if (location.hostname === "www.reddit.com") { location.href = location.href.replace("www.reddit.com", "old.reddit.com"); }})();

Necessary due to Google search results on Reddit leading to the new.reddit.com version of a page which demands a login more often than not.

I hate sticky and fixed page headers, so these two are handy:

Convert fixed position to absolute:

    javascript:(function(){var%20i,%20elements=document.querySelectorAll('body%20*');for%20(i=0;%20i<elements.length;%20i++)%20{if%20(getComputedStyle(elements[i]).position%20==='fixed'){elements[i].style.position='absolute';}}})();

    javascript:(function(){var%20i,%20elements=document.querySelectorAll('body%20*');for%20(i=0;%20i<elements.length;%20i++)%20{if%20(getComputedStyle(elements[i]).position%20==='sticky'){elements[i].style.position='absolute';}}})();

Scroll to bottom:

   javascript:(function(){window.scrollTo({top:document.body.scrollHeight,behavior:'smooth'});})();

    javascript:(function(){%20let%20count%20=%200;%20const%20interval%20=%20setInterval(()%20=>%20{%20window.scrollTo({%20top:%20document.body.scrollHeight,%20behavior:%20'smooth'%20});%20count++;%20if%20(count%20>=%2010)%20clearInterval(interval);%20},%201000);%20})();

    javascript:(function()%7Bvar%20skipButton=document.querySelector('button.ytp-ad-skip-button-modern');if(skipButton)%7BskipButton.click();%7Delse%7Bdocument.querySelector('video').currentTime=document.querySelector('video').duration;%7D%7D)();

Bookmarklets are effectively dead, unless they're extremely simple or you use Firefox. It's kinda ridiculous that they've been effectively blocked by changes to browsers (like chromium-based ones) that make it nearly impossible to run JavaScript from the address bar, along with "Content Security Policy" rules that enable widespread blocking of inline scripts.

It's unfortunate that browser developers want to fully derisk all potential security holes, because that also means removing the choice from the end user. This ends up being security by infantilization.

give a try TabTab https://tabatb.xyz