I was looking for Reader view on Linux though…
Does it not work for you on Linux? When I use Firefox on Linux, the reader view icon shows up for me at the right end of the address bar on supported sites.
- Guide: https://support.mozilla.org/en-US/kb/firefox-reader-view-clu...
It even works on HN discussion pages (though HN is such a simple site that there's no benefit). You can test it on this discussion (https://news.ycombinator.com/item?id=30061672) or any Wikipedia page.
- Reader view (desktop): https://support.mozilla.org/en-US/kb/firefox-reader-view-clu...
- Reader view (Android): https://support.mozilla.org/en-US/kb/view-articles-reader-vi...
- Reader view (iOS): https://support.mozilla.org/en-US/kb/view-web-pages-reader-v...
A Firefox support page recommends using the NoScript extension for quickly toggling JavaScript, which works on both desktop and Android:
- JavaScript support page: https://support.mozilla.org/en-US/kb/javascript-settings-for...
- NoScript: https://addons.mozilla.org/en-US/firefox/addon/noscript/