Chrome's built-in tab groups help a little, but they don't solve the problem of forty tabs slowing your computer down. A dedicated tab manager extension can collapse tabs into a list, switch to a vertical sidebar layout, or reload every tab at once, depending on what is actually causing your browser to feel cluttered or slow.
Collapsing tabs into a list with OneTab
OneTab turns every open tab into a single list of links on one page, freeing up the memory those tabs were using. You can restore all of them, restore one at a time, or export the list to share it. It suits anyone who opens many tabs for research and wants them saved without keeping the browser slow.
Vertical tabs for wide screens
A vertical tabs extension moves your tab bar to the side of the window, which shows more of each tab's title instead of just a favicon once you have many open. This layout works best on a wide monitor and suits people who prefer scanning a list over hunting through squeezed horizontal tabs.
Reloading or resizing tabs at once
Some tab manager extensions add a single button to reload every open tab, which is useful after a network change or a site-wide update. Others let you resize or arrange tab windows side by side for comparing pages. Pick the feature that matches your actual workflow instead of installing a heavier all-in-one tool.