Though there are similar addons, I am happy to say that this addon is near perfect: gives a copy of the webpage as a single file for offline reading + file size is also small.

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This One Saves A Complete web Page in Single HTML.This add-on is very useful.Great Work Developer

Can you please add the feature to save pages in reader view? Thank you.

ok

(*** English below ***)
Excellent !
Ne pas oublier d'explorer les multiples possibilités auxquelles on accède par un clic droit sur l'icône SingleFile.
En particulier:
- Pour annoter la page avant de la sauvegarder (notes, surlignage ...).
- Pour sauvegarder où l'on veut: Options (de SingleFile)->Nom de fichier > Cocher 'Ouvrir "Sauver sous"'.
[Sous FF on accède aux options ainsi: Outils->Add-ons...->SingleFile->Options.]
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Great!
Don't forget to explore the numerous possibilities that can be accessed by right-clicking on the SingleFile icon.
In particular:
- To annotate the page before saving it (notes, highlighting ...).
- To save where you want: Options (of SingleFile)->File name > Check 'Open "Save as"'.
[Under FF you can access the options as follows: Tools->Add-ons...->SingleFile->Options].

Absolutely Great Addon 😍😍😍

Des années que j'aurais aimé faire cela !