You'll need Firefox to use this extension Download Firefox and get the extension Download file 779 Users 21 Reviews 4.
The Kiwix application for Android is even easier: if the bases are in the phone storage or on the memory card, they will be displayed in the main program window, ready to open, if you need to download the bases from the application - open the menu - "Get content" - "Online" and select the databases to download (you can use the search to quickly find the database you want). Kiwix is an offline solution that allows you to access educational content like Wikipedia, the Wiktionary, and many others on any computer or smartphone - without the need for a live internet connection. It supports opening articles in new tabs, searching by page and other functions (I could not find out how the "Reading List" works). Then you can read Wikipedia offline any way you want: internal links work fine, search works too (just typing and Enter doesn't always work, in this case use the option of the tooltips that appear). The databases available are not limited to Wikipedia, other interesting databases can also be found.
It should be noted that the databases, if only the Russian Wikipedia is taken, are available in several versions: the largest for 2019 contains all the articles together with the images in them (maxi, 26 GB), there is a version no images (mini, 10 GB) and variants with only the most popular articles or selections of material from Wikipedia on a particular topic. Note that if you want to put the database on a memory card, and it is on the FAT32 file system, files larger than 4 GB will not fit on it. The same databases can also be downloaded within the application, but I recommend that you use the site: there are torrent files available and with their use the download will be faster, and then, if a mobile application is used, you can copy the file from the database from your computer to your phone or tablet.
Kiwix is a free (gpl) software only available for Windows. You can also find applications for mobile platforms in the Play Market and the App Store). Kiwix latest version: A free (gpl) app for Windows, by Kiwix. You can download both from the following sections of the official website: